20 Shorts Niches for a Chrome Extension Review Channel
20 micro-niches, all kinetic-typography / motion-graphic friendly, all fit a Chrome plugin review channel. Reuse house canvas, pastel marks, centred letter-by-letter type. Updated 2026-10-13.
| # | Micro-niche | Format | Why it fits |
|---|---|---|---|
| 1 | One extension, one problem (extension fixes X) | screenshot card stack + type | same pipeline, search-driven |
| 2 | Extension vs extension head-to-head | split card, animated score | ranking suspense |
| 3 | Top 5 extensions for one job (students, devs, sellers) | numbered feature cards | countdown format |
| 4 | Extensions that replace paid SaaS | logo swap animation | money hook |
| 5 | Privacy: what extension X actually collects | permission list animates in | fear hook, trust |
| 6 | Extensions removed or banned this week | news-style type build | recurring, timely |
| 7 | Hidden features inside popular extensions | zoom-in GUI clip | did-you-know hook |
| 8 | Extension + AI combos (ChatGPT sidebar tools) | screen record + type | AI RPM |
| 9 | Chrome flags and settings nobody uses | animated settings panel | adjacent, huge audience |
| 10 | Keyboard shortcut Shorts (one shortcut per video) | key-cap animation | 15-sec, loopable |
| 11 | Tab management workflows | tab bar animation | pain-point niche |
| 12 | Bookmarklets as no-install extensions | code-to-button animation | own asset base |
| 13 | Extensions for YouTube creators | GUI clips | self-referential audience |
| 14 | Extensions for Shopify / Amazon sellers | stat count-ups | high CPM |
| 15 | Extensions for job hunters (LinkedIn, resume) | before/after card | career search |
| 16 | Extensions for teachers and students | feature cards | untapped sub-audience |
| 17 | Extension install-to-result in 20 sec | fast GUI clip | pure demo, high watch-through |
| 18 | Scam and fake extension warnings | red-flag checklist animates | safety hook |
| 19 | Extension changelog: what is new in v2 | diff-style type build | recurring, low supply |
| 20 | Same extension on Edge, Brave, Firefox | logo row animation | widens search |
Video ideas per niche (400 total)
Every idea is built on a real Chrome extension. Names linked where the extension is in the verified top-100 list; others are well-known store listings. Jump: 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20
1. One extension, one problem 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Amazon is full of fake brands. This hides them | Knockoff - Amazon Shopping Filter | Half the brands on your Amazon search page do not exist outside a trademark form. | Knockoff checks every listing against a register of 5,500 real companies and greys out the pseudo-brands so real products surface first. |
| 2 | Stop keeping 40 tabs open for later | AnySnooze: Snooze Tabs & Tab Reminders | That tab you are saving for Friday is costing you RAM every day until Friday. | Type 'friday 3pm' and AnySnooze closes the tab and reopens it exactly on time with no account. |
| 3 | Your screen share just leaked an API key | DataBlur: Blur Screen and Hide Sensitive Data | Every live demo is one alt-tab away from showing your customer list. | One click blurs passwords, keys, emails and prices locally, so the recording never captures them. |
| 4 | LinkedIn without the feed is a different app | LinkedIn Feed Blocker | You opened LinkedIn to check one message and lost twenty minutes to the feed. | A 14 KB extension deletes the home feed and its infinite-scroll requests while messages, jobs and search still work. |
| 5 | You skimmed it. This tells you what you missed | Skim Recap | You just scrolled past 800 words in two seconds and your brain kept none of it. | Skim Recap notices the fast scroll and summarises the skipped text on-device in a card beside your cursor. |
| 6 | Dead link? Check 10 archives in one click | PastPage: Query 10+ Web Archives at Once | The page you need was deleted last year, but it probably still exists somewhere. | PastPage searches the Wayback Machine and ten other archives at once and shows how the page changed over time. |
| 7 | Never paste a password into ChatGPT again | Redact | You pasted the whole config file into the chat, including the line you should not have. | Redact runs a local neural net that catches credentials and personal data before the message leaves your browser. |
| 8 | 2FA codes without touching your phone | 2FA Authenticator | Your phone is in the other room and the login code expires in thirty seconds. | An open-source TOTP generator in the browser imports your Google Authenticator QR and works fully offline. |
| 9 | Chrome killed your custom filters. Ohm brings them back | Ohm | The MV2 purge took your hide-this-element rules with it. | Ohm restores uBlock-style cosmetic filtering with rules stored locally and no network permission at all. |
| 10 | You bought it the day before the price dropped | Dropy - Price Tracker and Price Drop Alerts | That product went 30 percent cheaper the week after you paid full price. | Dropy watches any product page, shows price history and pings you when it hits your target. |
| 11 | The ad blocker that still works on Chrome | uBlock Origin Lite | Your old ad blocker quietly stopped working and nobody told you. | uBlock Origin Lite is the Manifest V3 rebuild that blocks ads with no broad page access permission. |
| 12 | Every white website, dark, in one click | Dark Reader | It is midnight and that documentation page is a 400-watt lightbulb. | Dark Reader inverts colours per site with brightness and contrast sliders, and remembers exceptions. |
| 13 | 100 tabs into one list, memory back | OneTab | Your browser is using more RAM than your video editor. | OneTab collapses every open tab into a single list page you can restore one by one or all at once. |
| 14 | Skip every YouTube sponsor read automatically | SponsorBlock for YouTube - Skip Sponsorships | This video is about to tell you about a VPN for ninety seconds. | Crowdsourced timestamps let SponsorBlock jump past sponsor, intro and outro segments without you touching the bar. |
| 15 | Watch any lecture at 2.7x and keep the words | Video Speed Controller | YouTube caps you at 2x, but the lecturer talks at 0.8x. | Video Speed Controller adds keyboard-driven speed from 0.1x to 16x on any HTML5 video, including course sites. |
| 16 | The full-page screenshot that does not cut off | GoFullPage - Full Page Screen Capture | You need the whole page and your screenshot tool gives you the top third. | GoFullPage scrolls and stitches the entire page into one PNG or PDF with one click. |
| 17 | YouTube hid the dislikes. This shows them | Return YouTube Dislike | You cannot tell a tutorial from a scam when the dislike count is gone. | Return YouTube Dislike restores an estimated dislike number from archived and user data under every video. |
| 18 | Those ?utm links are tracking you. Fix it | ClearURLs | Every link you share carries a tracking tail you never typed. | ClearURLs strips tracking parameters from links automatically using a maintained rule list. |
| 19 | Browse Chrome without a mouse. Seriously | Vimium | Your hands leave the keyboard two hundred times a day to click a link. | Vimium turns every link into a two-letter shortcut and adds vim keys for scrolling and tabs. |
| 20 | Chrome eating RAM? Put idle tabs to sleep | Auto Tab Discard | Thirty tabs you are not reading are still running JavaScript right now. | Auto Tab Discard unloads tabs after a timer you set and reloads them the moment you click. |
2. Extension vs extension head-to-head 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | TabGroup Vault vs Session Buddy: which saves tabs better | TabGroup Vault: Tab Group Backup and Session Buddy Alternative, Session Buddy | Both promise your tabs survive a crash, but only one understands tab groups. | TabGroup Vault restores Chrome groups with names and colours, while Session Buddy wins on bulk search and history. |
| 2 | Readox vs Read Aloud: best voice for articles | Readox - Read Aloud Text to Speech for Web Pages & PDFs, Read Aloud: A Text to Speech Voice Reader | Two free readers, one sounds like a podcast and one sounds like a GPS. | Readox scores on on-device voices, PDFs and word highlighting, Read Aloud scores on language coverage and simplicity. |
| 3 | GemType vs Grammarly: do you need the subscription | GemType - AI Writing Assistant, Grammarly | One costs twelve dollars a month, the other costs a Gemini API key. | GemType matches the core grammar and rewrite loop for free and open source, Grammarly keeps the edge on tone and team features. |
| 4 | Clipwise vs Notion Web Clipper: who clips the whole page | Clipwise - web clipper for Notion, Notion Web Clipper | The official clipper saves half the article and calls it done. | Clipwise fills database properties before saving and warns on empty clips, the official one wins on zero setup. |
| 5 | Muchita vs Honey: which actually finds it cheaper | Muchita Shopping - Compare Prices, Find It Cheaper, PayPal Honey | One hunts coupons, the other hunts the same product on a different store. | Muchita compares verified offers across retailers with no affiliate links, Honey auto-applies codes at checkout. |
| 6 | Bramble vs Bitwarden: no-server password manager | Bramble, Bitwarden Password Manager | What if your password vault never touched a server at all. | Bramble syncs peer-to-peer with no account, Bitwarden keeps cloud sync, sharing and audited open-source servers. |
| 7 | Mobile View vs Responsive Viewer for device testing | Mobile View - Mobile Simulator & Preview, Responsive Viewer | DevTools shows one phone at a time, these two show five. | Mobile View gives device frames beside the live desktop page, Responsive Viewer gives more custom breakpoints and sync scrolling. |
| 8 | Screen Awesome vs Loom: free screen recorder fight | Screen Awesome - Record, Capture & Annotate, Loom | Loom's free plan caps you at five minutes, this one does not. | Screen Awesome records to MP4 with auto-zoom on clicks and local export, Loom wins on instant share links and viewer analytics. |
| 9 | LoupeKit vs Wappalyzer: what is this site built with | LoupeKit - Web Tech & AI Vibe-Code Inspector, Wappalyzer | Both name the tech stack, only one tells you if the site was vibe-coded. | LoupeKit adds evidence, design tokens and an AI-code score, Wappalyzer has the bigger fingerprint database. |
| 10 | Omi vs WAVE: which accessibility scanner to trust | Omi - A11Y, WAVE Evaluation Tool | One gives your page a letter grade, the other gives it a hundred icons. | Omi scores 0-100 with fix suggestions and a focus-order view, WAVE is the long-standing auditor with inline error markers. |
| 11 | ChatHop vs ThreadPort: move a chat from ChatGPT to Claude | ChatHop, ThreadPort - Move & export AI chats: ChatGPT, Claude, Gemini & more | You hit the usage limit mid-conversation and the other AI has no idea what you were doing. | ThreadPort moves the full transcript in one click, ChatHop preserves chronology and exports Markdown but limits free uses. |
| 12 | PiP Cue vs Google's own Picture-in-Picture | PiP Cue - Picture in Picture for YouTube and Every Video, Picture-in-Picture Extension (by Google) | Google's floating player does one thing, this one does seven. | PiP Cue adds captions, transcripts, A-B loop and speed, Google's stays smaller and zero-config. |
| 13 | LeoTabs vs OneTab: the tab manager showdown | LeoTabs - Tab Manager & Switcher, OneTab | OneTab dumps your tabs into a list, LeoTabs puts them away in named collections. | LeoTabs wins on search, notes and resuming working sets, OneTab wins on being the fastest panic button. |
| 14 | Dark Reader vs Night Eye: who darkens better | Dark Reader, Night Eye | Both make the web dark, one of them breaks fewer images. | Dark Reader is free and open source with per-site tuning, Night Eye handles images and gradients more gracefully but charges after the trial. |
| 15 | Privacy Badger vs Ghostery: tracker blocker duel | Privacy Badger, Ghostery | One learns which trackers to block, the other already has the list. | Privacy Badger blocks by observed behaviour with no lists, Ghostery shows named trackers and blocks ads too. |
| 16 | Bitwarden vs 1Password: is paying worth it | Bitwarden Password Manager, 1Password | Free and open source versus the one every company pays for. | Bitwarden covers unlimited passwords and sync at zero cost, 1Password wins on Watchtower alerts, travel mode and polish. |
| 17 | Toggl Track vs Clockify: free time tracker fight | Toggl Track, Clockify | Both put a start button inside your task manager, only one is free for teams. | Clockify is free for unlimited users, Toggl Track has the nicer timer and reports but caps free seats. |
| 18 | BlockSite vs StayFocusd: which actually stops you | BlockSite, StayFocusd | One blocks sites, the other gives you ten minutes and then locks you out. | StayFocusd's nuclear option is unbeatable for discipline, BlockSite is easier to set up and has schedules. |
| 19 | Keepa vs The Camelizer: Amazon price history | Keepa - Amazon Price Tracker, The Camelizer | Two charts, same product, one of them shows the used price too. | Keepa embeds a dense chart with new, used and buy-box lines, The Camelizer is simpler and faster to read. |
| 20 | Cookie-Editor vs EditThisCookie | Cookie-Editor, EditThisCookie | You need to edit one cookie and Chrome's DevTools makes you dig for it. | Cookie-Editor is actively maintained with import and export, EditThisCookie is the classic with the familiar layout. |
3. Top 5 extensions for one job 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | 5 extensions every student needs this semester | Quizzyly, Kogvio, QuickDef - AI Dictionary for PDFs & English Learners, Readox - Read Aloud Text to Speech for Web Pages & PDFs, Google Scholar Button | Your reading list is 400 pages and the exam is Monday. | Quiz any page, ask AI about a highlighted diagram, define phrases in PDFs, listen to readings and find papers in one click. |
| 2 | 5 extensions for coding with Claude or Cursor | Qursor, Agentation Vue, MarkUp: Annotate webpages, prompt AI agents, Bugpilot: Console and Network Bug Reports for AI, DESIGN.md Style Extractor - TypeUI | Your AI coder keeps guessing which button you meant. | Each one turns a click on the live page into exact Markdown context the agent can act on. |
| 3 | 5 extensions Amazon sellers use daily | Keepa - Amazon Price Tracker, Helium 10, Jungle Scout, AMZScout, DS Amazon Quick View | The sellers beating you are not guessing their numbers. | Price history, sales estimates, keyword data and inline BSR without leaving the search page. |
| 4 | 5 extensions that save money on every order | Knockoff - Amazon Shopping Filter, Dropy - Price Tracker and Price Drop Alerts, Muchita Shopping - Compare Prices, Find It Cheaper, Fakespot, The Camelizer | Buying online without these is paying a tax on not knowing. | Filter fake brands, track drops, compare stores, grade reviews and read price history before checkout. |
| 5 | 5 extensions for ChatGPT and Claude power users | Usage Bar for Claude: Limits & Context Tracker, Claude-Nexus, ChatPilot - ChatGPT Bulk Delete, Archive and Timestamps, Memdex - Auto-Save AI Chats, Recall Anywhere, PromptEditor: Markdown Sidebar for AI Prompts | You use AI four hours a day with the default interface. | Track limits, organise chats into folders, bulk delete, auto-save memory and edit prompts in a sidebar. |
| 6 | 5 extensions every frontend designer needs | Tinkerfont, Pablo, Area Contrast Checker - Drag to Scan WCAG and APCA, ColorZilla, WhatFont | You can steal the whole look of a site in under a minute. | Swap fonts live, copy any component as HTML and CSS, check contrast on real pixels and pick any colour or font. |
| 7 | 5 extensions that make bug reports developers love | BugShot - Bug Reporting in One Shot, DevRecorder, Session Recorder, DevTools Export, Screen Awesome - Record, Capture & Annotate | 'It is broken' is not a bug report. | Every one of these captures console, network and screen together so the dev can reproduce it first try. |
| 8 | 5 extensions privacy nerds install first | Agent Browser Shield, VaultBix - Real-Time Data Leak Guard, Bramble, Privacy Badger, ClearURLs | Your browser leaks more than your phone does. | Block prompt injection, stop secrets reaching AI chats, keep passwords off servers, kill trackers and strip link tracking. |
| 9 | 5 extensions for learning a language from video | Sublern - AI Translate Words in Video Subtitles, Sparkle, Vibe Reading (offline PDF translation with Gemini Nano), Language Reactor, Overline | Duolingo is not how people actually learn languages. | Hover subtitle words, swap vocabulary into pages, translate PDFs offline, dual subtitles and live captions on any video. |
| 10 | 5 extensions for academic research | Bioscript: AI Copilot for Academic Research, Zotero Connector, Unpaywall, Scite, Web Clipper for NotebookLM (Notebook Clipper) | Your literature review is 90 percent clicking and 10 percent reading. | Summarise papers on PubMed, save citations, unlock free PDFs, check how a paper was cited and push it all into NotebookLM. |
| 11 | 5 extensions for people with 200 tabs | AnySnooze: Snooze Tabs & Tab Reminders, LeoTabs - Tab Manager & Switcher, TabGroup Vault: Tab Group Backup and Session Buddy Alternative, OneTab, Auto Tab Discard | You are not a hoarder, your browser just has no shelves. | Snooze, collect, back up, collapse and suspend, each extension handles one part of the tab pile. |
| 12 | 5 extensions that make you write faster | Clico brings GPT, Claude, & Gemini to every page you browse, GemType - AI Writing Assistant, Wordtune, QuillBot, Tapfree: Voice Dictation | The blank text box is where your afternoon goes to die. | Draft inline with Ctrl+O, grammar-check with your own key, rephrase, paraphrase and dictate instead of typing. |
| 13 | 5 extensions for remote meetings | Notula for Google Meet, MeeLang, Copresent - Remote Control for Google Slides, Loom, Clockify | Your meeting notes are three words and a doodle. | Transcribe Meet to Markdown, live-translate, control slides from your phone, record async updates and track the time spent. |
| 14 | 5 extensions for social media power users | X Viral Monitor, Bouncer - Filter your X feed, Twitter and X Bookmarks on New Tab - Totem, StackSweller, Slop Goggles | The algorithm decides your feed unless you install something that does not. | See which posts are moving, filter topics in plain English, turn bookmarks into a queue, schedule Substack notes and spot AI slop on Reddit. |
| 15 | 5 extensions that fix YouTube | PiP Cue - Picture in Picture for YouTube and Every Video, SponsorBlock for YouTube - Skip Sponsorships, Return YouTube Dislike, YT Profiles - Multiple Watch Profiles for One Account, Enhancer for YouTube | YouTube removed every feature you liked, extensions put them back. | Float videos, skip sponsors, see dislikes, keep separate watch profiles and control playback the way you want. |
| 16 | 5 extensions for security analysts | ThreatCheck, Phixo - AI Phishing Protection for Gmail & Outlook, TriageBox: AI Checker for Gmail, VirusTotal, Malwarebytes Browser Guard | That link in your inbox has been checked by nobody. | Look up any IOC across 29 platforms, scan email for phishing, triage the inbox, check files and block known-bad sites. |
| 17 | 5 extensions every GitHub user should have | Better GitHub Stars Manager, Repo Reality Check, Octotree, Refined GitHub, NODUS HN Radar | You have 3,000 stars and cannot find the one you need. | Search your stars with tags, score a repo's credibility, browse files in a tree, de-clutter GitHub and catch rising dev stories. |
| 18 | 5 extensions to make your site accessible | Omi - A11Y, Area Contrast Checker - Drag to Scan WCAG and APCA, axe DevTools, WAVE Evaluation Tool, Columnary | One in six users cannot use your site and you have no idea. | Score the page, check contrast on real pixels, run the industry audit, mark errors inline and see how a reader-mode user experiences it. |
| 19 | 5 extensions for job hunting in 2026 | Simplify Copilot, Teal, Huntr, Careerflow, LinkedIn Feed Blocker | You applied to forty jobs and tracked none of them. | Autofill applications, track every role, build a pipeline, optimise your LinkedIn and remove the feed so you actually apply. |
| 20 | 5 extensions for saving the web as notes | .MD this page, Vertex, Clipwise - web clipper for Notion, Raindrop.io, Save to Google Drive | Bookmarks are where articles go to be forgotten. | Convert to Markdown, snapshot pages against link rot, clip into Notion, organise visually and drop files straight into Drive. |
4. Extensions that replace paid SaaS 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | This free extension replaces Loom | Screen Awesome - Record, Capture & Annotate | Loom wants fifteen dollars a month for recordings longer than five minutes. | Screen Awesome records tab, screen or camera to MP4 with auto-zoom and annotations, with no time cap. |
| 2 | Grammarly Premium for the price of an API key | GemType - AI Writing Assistant | You are paying 144 dollars a year for a spell-checker with opinions. | GemType gives the same inline corrections and rewrites on any site, powered by your own Gemini key, open source. |
| 3 | Cancel 1Password, keep the vault on your devices | Bramble | Your passwords live on someone else's server and you pay for the privilege. | Bramble stores an encrypted vault locally and syncs peer-to-peer between your devices with no account. |
| 4 | Octoparse costs 89 a month. This does it free | Web Data Scraper - Extract & Export to CSV/Excel/JSON | You need a spreadsheet of every product on that page, not a scraping subscription. | Point, click and export to CSV, Excel, JSON or Google Sheets without writing code. |
| 5 | Otter.ai replaced by a free Meet transcriber | Notula for Google Meet | Otter sends a bot into your meeting and charges you for the minutes. | Notula reads Meet's own captions and saves a speaker-labelled Markdown transcript, no bot, no audio upload. |
| 6 | CodePen Pro replaced by an offline playground | Offline JS Playground | You pay for private pens to test ten lines of JavaScript. | A Monaco editor with IntelliSense and a full console runs entirely offline in a tab. |
| 7 | Shots.so Pro replaced by a free mockup tool | Portfolio Frame - Screenshot Beautifier and Mockup Generator | Pretty screenshot mockups should not need another subscription. | Portfolio Frame turns plain screenshots into device frames and social images with batch export, nothing uploaded. |
| 8 | Speechify Premium replaced by this free reader | ReadAloud: Podcast-quality text-to-speech | Speechify charges 139 a year for the voices that do not sound robotic. | ReadAloud synthesises podcast-quality voices in the browser with follow-along highlighting up to 3.5x. |
| 9 | Authy replaced by an open-source 2FA extension | 2FA Authenticator | Authy killed its desktop app and left you with your phone. | 2FA Authenticator generates codes offline in Chrome and imports from Google Authenticator by QR. |
| 10 | DeepL Pro replaced by on-device Gemini Nano | Vibe Reading (offline PDF translation with Gemini Nano) | DeepL Pro charges per month to translate the PDFs you already have. | Vibe Reading translates whole papers paragraph by paragraph using Chrome's built-in model, offline. |
| 11 | Wordly live translation replaced for free | MeeLang | Enterprise meeting translation costs more per hour than the meeting. | MeeLang shows live subtitles in 30+ languages inside Google Meet with transcripts stored locally. |
| 12 | Momentum Plus replaced by a 214 KB new tab | dashi - a calm new tab | You pay yearly for a new tab page with a to-do list on it. | dashi gives notes, to-dos, weather, habits and timers with no account and no analytics. |
| 13 | Jam.dev replaced by a free dev recorder | DevRecorder | Jam charges per seat to record a bug with its console logs. | DevRecorder captures video synced with console, network and navigation on one timeline and shares by link. |
| 14 | LastPass Premium replaced by Bitwarden | Bitwarden Password Manager | LastPass had the breach and still sends you the invoice. | Bitwarden syncs unlimited passwords across devices for free with open-source, audited code. |
| 15 | Harvest replaced by Toggl Track's free tier | Toggl Track | Harvest bills you per person to find out where your hours went. | Toggl Track's extension puts a timer button inside 100+ web apps and reports are free for up to five users. |
| 16 | Charles Proxy replaced by Requestly | Requestly | Charles costs fifty dollars to redirect one API call. | Requestly modifies headers, mocks responses and redirects requests from a Chrome popup, free tier included. |
| 17 | Semrush traffic reports replaced by Similarweb | Similarweb | You want one competitor's traffic number and Semrush wants 129 a month. | Similarweb's extension shows visits, sources and rank for the site you are on at no cost. |
| 18 | Pocket Premium replaced by Raindrop.io | Raindrop.io | Pocket is gone and your reading list went with it. | Raindrop.io saves pages with visual cards, tags and full-text search on the free plan. |
| 19 | Snagit replaced by Awesome Screenshot | Awesome Screenshot & Screen Recorder | Snagit is sixty dollars to draw an arrow on a screenshot. | Awesome Screenshot captures, annotates, blurs and records from one toolbar, free for everyday use. |
| 20 | Workona Pro replaced by Session Buddy | Session Buddy | Workona charges monthly to remember which tabs belong to which project. | Session Buddy saves and restores named sessions, searches across them and exports, no subscription. |
5. Privacy: what extension X actually collects 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Muchita reads every product page. Check its permissions | Muchita Shopping - Compare Prices, Find It Cheaper | A price comparer has to read the page you are on, so what else can it read. | Expect host access to shopping sites and activeTab; the listing says no accounts and no affiliate links, verify that against the permissions page. |
| 2 | Clico lives in every text box. What does it see | Clico brings GPT, Claude, & Gemini to every page you browse | An AI that writes in Gmail, Slack and Notion needs access to Gmail, Slack and Notion. | Look for all-URLs host access and clipboard permissions, then decide if the convenience is worth the reach. |
| 3 | Memdex saves your AI chats. Where do they go | Memdex - Auto-Save AI Chats, Recall Anywhere | Auto-save means every ChatGPT message you type is being stored somewhere. | Check whether storage is local or synced, and which hosts beyond the AI sites it can read for recall highlighting. |
| 4 | WebBrain reads pages for an AI. Check the permissions | WebBrain | A browser agent that reads and acts on pages is the broadest permission a Chrome extension can ask for. | Expect all-sites access, tabs and scripting; the open-source code and local-model option are how you audit what it does with them. |
| 5 | CursorParty shows your cursor to strangers | CursorParty | Live cursors on a public URL means your URL is being sent to a server. | Check the host permissions and the default block list for banking and login pages before you leave Ghost Mode off. |
| 6 | Rook automates across all your tabs. Read the list | Rook | A multi-agent harness that works across tabs, apps and files needs to see tabs, apps and files. | Expect tabs, scripting, storage and broad host access, and match each one to a feature you actually use. |
| 7 | Waffy fills forms for you. What can it reach | Waffy - AI Copilot for Web | An agent that clicks and fills forms for you can click and fill any form. | Open-source and local with your own keys, but check all-URLs and scripting permissions and where the API keys are stored. |
| 8 | TriageBox scores your Gmail. Check what it reads | TriageBox: AI Checker for Gmail | Sorting your inbox means reading your inbox. | Expect mail.google.com host access and storage; the listing says core features run locally, so verify no remote endpoints are declared. |
| 9 | Phixo scans your email for phishing. And then | Phixo - AI Phishing Protection for Gmail & Outlook | To catch a phishing email it has to read the email first. | Check Gmail and Outlook host access and whether message bodies leave the browser, which the listing says they do not store. |
| 10 | NotebookLM clipper: what leaves your browser | Web Clipper for NotebookLM (Notebook Clipper) | One click saves the page to Google, so the extension needs the page and your Google session. | Expect activeTab, cookies for notebooklm.google.com and tabs; it is a transfer tool, so trace where content is sent. |
| 11 | Usage Bar for Claude: what it needs to count tokens | Usage Bar for Claude: Limits & Context Tracker | To show your Claude limits it has to see your Claude traffic. | Expect claude.ai host access and storage only; open source and all local is the claim, the manifest is the proof. |
| 12 | Slop Goggles reads Reddit for you. Check the scope | Slop Goggles | Detecting AI comments means every comment you scroll past gets analysed. | Look for reddit.com-only host access and whether detection runs locally or through a remote API. |
| 13 | Honey sees every checkout. Check the permissions | PayPal Honey | A coupon finder on every store is also a visitor on every store. | Expect all-sites access plus cookies; read PayPal's privacy disclosure to see what purchase data is collected. |
| 14 | Grammarly reads what you type. All of it | Grammarly | Grammar checking works by sending your text to Grammarly's servers. | Expect all-URLs access; check its privacy disclosure for which fields are excluded and how to block it on sensitive sites. |
| 15 | Keywords Everywhere sees every search. Check why | Keywords Everywhere | To show volume next to your search it needs your search. | Expect host access to Google, YouTube and Amazon and an API key; check the data-use section for what queries are logged. |
| 16 | Hunter finds emails on pages. What does it collect | Hunter | An extension that finds emails on any site is reading any site. | Check all-URLs permissions and the privacy disclosure about domains visited; limit it with site access set to on-click. |
| 17 | Momentum is a wallpaper. Why does it need these | Momentum | A pretty new tab should not need much, so read what it asks for. | Expect geolocation for weather and storage, and compare the free and Plus tiers for any extra permissions. |
| 18 | Wappalyzer knows every site you visit | Wappalyzer | Detecting tech stacks means fingerprinting every page you open. | Expect all-URLs and webRequest access; check the privacy section on what site data is shared for its lead database. |
| 19 | Capital One Shopping: check its permissions | Capital One Shopping | Free coupons from a bank come with a privacy policy worth reading. | Expect all-sites access and cookies; the disclosure lists purchase and browsing data use, so decide with the facts. |
| 20 | Google Translate extension: what gets sent to Google | Google Translate | Translating a page means the page goes to Google. | Expect activeTab and context menus; selected text and full pages are sent to the translation service, so avoid it on private documents. |
6. Extensions removed or banned 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | The Great Suspender had 2M users. Then it became malware | The Great Suspender, Auto Tab Discard | Two million people installed a tab saver that Google had to kill with a red warning banner in 2021. | A sold extension can push malicious updates to everyone, so swap to Auto Tab Discard, which does the same job and is open source. |
| 2 | Nano Adblocker was sold and started stealing Instagram likes | Nano Adblocker, Nano Defender, uBlock Origin | In 2020 a trusted ad blocker changed hands and started liking Instagram posts for you. | Forks die when the dev walks away, so run the original, uBlock Origin, straight from its real author. |
| 3 | Stylish got banned for logging every page you visited | Stylish, Stylus | The theme extension with millions of users was secretly recording your full browsing history in 2018. | Stylus is the community fork built after the scandal, with the same themes and zero tracking. |
| 4 | A phishing email hijacked Web Developer for a day | Web Developer, LoupeKit - Web Tech & AI Vibe-Code Inspector | In 2017 one phished password let attackers push ads into a dev tool used by a million coders. | Check who maintains your tools, and use LoupeKit to inspect a site's stack without legacy permissions. |
| 5 | Copyfish was stolen by hackers through one fake email | Copyfish, OCR It | The OCR extension Copyfish was hijacked in 2017 and shipped adware to every user within hours. | Prefer OCR that runs locally like OCR It, which never sends your screen to a server. |
| 6 | Hola VPN sold your bandwidth to a botnet | Hola VPN, Privacy Badger | The free VPN with 40 million users was turning every PC into an exit node for paying customers in 2015. | Free VPN extensions make you the product, so block trackers with Privacy Badger and pay for a real VPN. |
| 7 | Chrome just switched uBlock Origin off for everyone | uBlock Origin, Ohm | Manifest V3 turned the best ad blocker into a greyed-out icon that says no longer supported. | Ohm brings uBlock-style cosmetic filter rules back to Chrome with local storage and no network permission. |
| 8 | Honey was quietly stealing creators' commissions | Honey, Muchita Shopping - Compare Prices, Find It Cheaper | In December 2024 a video exposed how Honey swapped affiliate links at checkout and hid better coupons. | Muchita Shopping compares prices with no affiliate links and no paid placement, so nobody skims the sale. |
| 9 | Particle for YouTube was sold and turned into adware | Particle for YouTube, Enhancer for YouTube | A beloved YouTube tweaker got sold in 2017 and the new owner injected ads into every video page. | Enhancer for YouTube offers the same layout controls and is still maintained by the original dev. |
| 10 | Web of Trust sold your history. Yes, the safety tool | Web of Trust, Malwarebytes Browser Guard | The extension that rated websites as safe was caught selling user browsing data in 2016. | Malwarebytes Browser Guard blocks scams and malicious sites without reselling what you browse. |
| 11 | Avast's free extension sold your clicks to brands | Avast Online Security, Netcraft Extension | In 2019 Avast and AVG browser extensions were pulled for feeding every click into a data broker called Jumpshot. | Netcraft Extension flags phishing without harvesting your history, and antivirus does not belong in your browser. |
| 12 | Pocket is dead. Here is where your saves should live | Pocket, Raindrop.io | Mozilla shut Pocket down in July 2025 and millions of saved articles went with it. | Raindrop.io imports your Pocket export and keeps bookmarks, highlights and tags in one place. |
| 13 | Fakespot is gone. This filter catches fake brands | Fakespot, Knockoff - Amazon Shopping Filter | The review checker you trusted on Amazon was shut down by Mozilla in 2025. | Knockoff labels pseudo-brand listings against a register of real companies, which is the other half of the scam. |
| 14 | Fake Netflix Party stuffed 800K browsers with cookies | Netflix Party, CouchCritic - Stream, Watch, Discuss | In 2022 McAfee found a copycat Netflix Party quietly planting affiliate cookies on every shop you opened. | Lookalike names are the trap, so check the developer and try CouchCritic for timestamped watch chat. |
| 15 | FlipShope price tracker was a cookie-stuffing scam | FlipShope, Dropy - Price Tracker and Price Drop Alerts | A price tracker with over 80,000 users was pulled in 2022 for injecting affiliate IDs into your purchases. | Dropy tracks any product page and sends drop alerts without touching your checkout. |
| 16 | One phishing email poisoned 35 extensions at once | Cyberhaven, 2FA Authenticator | On Christmas Eve 2024 attackers phished a developer and pushed a malicious update to Cyberhaven's whole user base. | The fix was 2FA on the developer account, and 2FA Authenticator generates codes offline with no servers. |
| 17 | SpeakIt read pages aloud and leaked 4M users' data | SpeakIt!, Readox - Read Aloud Text to Speech for Web Pages & PDFs | The DataSpii leak of 2019 exposed tax returns and medical records through a text-to-speech extension. | Readox does read-aloud with on-device voices and word highlighting, nothing leaves your machine. |
| 18 | Bypass Paywalls Clean got DMCA'd off the internet | Bypass Paywalls Clean, PastPage: Query 10+ Web Archives at Once | The News Media Alliance filed a DMCA in 2024 and the most-installed paywall bypass vanished from Chrome and GitHub. | PastPage searches the Wayback Machine and ten other archives at once for a legal copy of the page. |
| 19 | Fake ChatGPT extension stole 2,000 Facebook logins a day | Quick access to Chat GPT, Monica | In March 2023 a Chrome extension promising fast ChatGPT access was stealing Facebook sessions at scale. | Install AI sidebars only from verified publishers, and Monica is the real one with the page-aware chat. |
| 20 | Grammarly leaked your documents to any website for a day | Grammarly, GemType - AI Writing Assistant | A Google researcher found in 2018 that any site could read every doc in your Grammarly account. | GemType gives Grammarly-style checks through your own Gemini key and is fully open source. |
7. Hidden features inside popular extensions 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | uBlock Origin has a zapper nobody clicks | uBlock Origin | That tiny lightning bolt in the uBlock popup deletes any element on the page for this visit only. | Element zapper removes popups and overlays instantly without writing a permanent filter. |
| 2 | Dark Reader hides a CSS editor for broken sites | Dark Reader | When Dark Reader ruins one site, open its Dev Tools panel and write a three-line fix. | Per-site fixes in Dark Reader's dev tools let you override inverted images and colours yourself. |
| 3 | OneTab turns your tab list into a shareable URL | OneTab | Click Share as web page and every tab in your OneTab list becomes one link you can send. | OneTab's share feature replaces pasting twenty URLs into a chat with a single page. |
| 4 | Grammarly can tell you how your email sounds | Grammarly | The little face at the bottom of your draft is Grammarly's tone detector and it reads the whole message. | Tone detection flags when a reply sounds annoyed or unsure before you hit send. |
| 5 | Keepa hides sales rank history behind one toggle | Keepa - Amazon Price Tracker | Keepa's price graph has a Sales Rank button that most shoppers never flip on. | Sales rank history shows if a product is actually popular or just well advertised. |
| 6 | Bitwarden copies your 2FA code when it autofills | Bitwarden Password Manager | Store the authenticator key in Bitwarden and the TOTP code lands in your clipboard the moment it fills the login. | Built-in TOTP in Bitwarden removes the phone grab on every two-factor login. |
| 7 | ColorZilla can scan a whole site's palette | ColorZilla | ColorZilla is more than an eyedropper, the Webpage Color Analyzer lists every colour the page uses. | Color Analyzer extracts a full palette with CSS values in one click, no inspecting required. |
| 8 | StayFocusd has a Nuclear Option. Do not press it | StayFocusd | Deep in StayFocusd's settings is a button that blocks the entire internet for hours and cannot be undone. | The Nuclear Option is the one blocker you cannot talk yourself out of. |
| 9 | Video Speed Controller has a secret favourite-speed key | Video Speed Controller | Press G on any video and Video Speed Controller jumps straight to your preferred speed. | Set a preferred speed once and G toggles between it and normal without tapping D five times. |
| 10 | SponsorBlock can jump to the best moment of any video | SponsorBlock for YouTube - Skip Sponsorships | SponsorBlock does more than skip ads, press Enter and it jumps to the community-marked highlight. | The highlight feature takes you to the part everyone actually came for. |
| 11 | Language Reactor pauses after every subtitle line | Language Reactor | Turn on Auto-pause and Netflix stops after each line until you have understood it. | Auto-pause turns passive watching into sentence-by-sentence listening practice. |
| 12 | Clockify knows when you walked away from the desk | Clockify Time Tracker | Clockify's idle detection notices when you stop moving the mouse and asks what to do with that time. | Idle detection keeps your timesheet honest without you remembering to stop the timer. |
| 13 | MarkUp exports your screenshot as a changelog for AI | MarkUp: Annotate webpages, prompt AI agents | Draw an arrow on a live page and MarkUp writes a markdown changelog with the exact CSS path for Claude or Cursor. | The hidden markdown export turns design feedback into instructions a coding agent can act on. |
| 14 | Screen Awesome zooms to your clicks on its own | Screen Awesome - Record, Capture & Annotate | Record a tab with Screen Awesome and the camera glides to every click without you editing anything. | Auto-zoom makes a plain tutorial recording look edited in post. |
| 15 | PiP Cue can loop any 10 seconds of a video | PiP Cue - Picture in Picture for YouTube and Every Video | Inside PiP Cue's floating window there is an A-B loop that repeats a section forever. | A-B loop is built for guitar riffs, dance moves and anything you need to watch twenty times. |
| 16 | Tinkerfont remembers your font swap per website | Tinkerfont | Replace a site's font with Tinkerfont and it stays replaced on that hostname every time you return. | Per-hostname rules and custom woff2 uploads make it a permanent font fix, not a preview. |
| 17 | This Claude extension shows your cache timer | Usage Bar for Claude: Limits & Context Tracker | Usage Bar shows a prompt-cache countdown that tells you when your next message gets expensive. | Reply before the cache timer expires and your long chats cost far fewer tokens. |
| 18 | OCR It turns scanned PDF pages for you | OCR It | Pin one screen region in OCR It and it auto-turns pages through a scanned PDF while reading each one. | Auto page turning makes a 200-page scan searchable without clicking next 200 times. |
| 19 | AnySnooze understands every monday | AnySnooze: Snooze Tabs & Tab Reminders | Type every monday 9am into AnySnooze and the tab comes back on schedule, forever. | Recurring snoozes turn a tab into a repeating reminder with no calendar app. |
| 20 | BugShot shows a before and after diff of your CSS edits | BugShot - Bug Reporting in One Shot | Edit CSS live inside BugShot's side panel and it records the diff next to the screenshot. | The before/after diff lets you file a bug with the fix already attached. |
8. Extension + AI combos 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Move a ChatGPT chat into Claude without losing context | ThreadPort - Move & export AI chats: ChatGPT, Claude, Gemini & more | ChatGPT is stuck, so one click moves the whole conversation into Claude and it picks up mid-thought. | ThreadPort transfers full transcripts between ChatGPT, Claude, Gemini, Perplexity and Mistral. |
| 2 | Your AI chats now have a search engine | Memdex - Auto-Save AI Chats, Recall Anywhere | Memdex saves every ChatGPT and Claude chat and underlines words on any page that match something you already asked. | Auto-saved chats become context that comes back on its own, like spell-check for your memory. |
| 3 | This stops you pasting passwords into ChatGPT | Redact | Paste a log into ChatGPT and Redact catches the API key before the message leaves your browser. | An on-device neural net masks credentials and PII for ChatGPT, Claude and Gemini, open source. |
| 4 | The AI leak guard every developer needs | VaultBix - Real-Time Data Leak Guard | VaultBix blocks the send button when your prompt contains a secret, token or customer email. | Real-time local scanning keeps company secrets out of AI tools without a policy document. |
| 5 | Delete 500 ChatGPT chats in one click | ChatPilot - ChatGPT Bulk Delete, Archive and Timestamps | ChatGPT still has no select-all, so ChatPilot adds checkboxes, bulk delete and timestamps. | Bulk archive and delete clean a year of chats in seconds without reading their content. |
| 6 | Write prompts in Markdown with fill-in blanks | PromptEditor: Markdown Sidebar for AI Prompts | PromptEditor opens a sidebar where your prompt has placeholders you fill before it fires at ChatGPT. | Variables and templates in a Markdown sidebar end copy-paste prompt management. |
| 7 | Press Ctrl+O and AI writes inside any text box | Clico brings GPT, Claude, & Gemini to every page you browse | In Gmail, Notion or Slack, Ctrl+O opens an inline dialog that drafts the reply right at the cursor. | Clico brings GPT, Claude and Gemini to every text field with no tab switching. |
| 8 | A clipboard tray built for ChatGPT | CacheTray - Clipboard for AI Workflows | Copy five screenshots, two links and a code block, then send the whole tray to ChatGPT in one click. | CacheTray batches mixed clips per project so a prompt gets all its context at once. |
| 9 | Highlight a diagram and ask AI what it means | Kogvio | Select a chart in a PDF and Kogvio's vision model explains it step by step without leaving the page. | In-context asking on text and images beats screenshotting into a separate chat. |
| 10 | A ChatGPT sidebar that runs on your own GPU | WebBrain | WebBrain is an open-source sidebar agent that reads pages and extracts data using a local Ollama model. | Free MIT-licensed browser AI with no account and no data leaving your PC. |
| 11 | Send a whole YouTube playlist to NotebookLM | Web Clipper for NotebookLM (Notebook Clipper) | One click sends a page, PDF, Reddit thread or full YouTube playlist straight into a NotebookLM notebook. | The clipper turns NotebookLM into a research inbox for everything you read. |
| 12 | Your AI browser agent can be hacked by a webpage | Agent Browser Shield | Hidden text on a page can hijack your AI agent, and Agent Browser Shield strips it before the agent reads. | Prompt-injection protection plus PII masking makes browser agents safe to leave running. |
| 13 | Chat with any webpage from the side panel | Sider | Sider puts ChatGPT, Claude and Gemini in a side panel that already knows the page you are reading. | Page-aware chat means summaries and questions without copying a single paragraph. |
| 14 | Merlin answers before you finish reading the page | Merlin | Highlight anything, press the Merlin shortcut and the answer appears in a floating box. | Merlin brings GPT-level replies to Gmail, YouTube and search results in one extension. |
| 15 | Glasp summarises YouTube videos with ChatGPT | Glasp | Glasp adds a transcript button to YouTube and sends it to ChatGPT for a summary in one click. | Transcript plus summary turns a 40-minute talk into five bullet points you can highlight and save. |
| 16 | Perplexity replaces your Google search bar | Perplexity - AI Companion | Type into the address bar and Perplexity answers with cited sources instead of ten blue links. | The companion summarises pages and searches with citations without leaving the tab. |
| 17 | Wordtune rewrites your sentence five ways | Wordtune | Highlight a clunky line and Wordtune offers casual, formal, shorter and longer versions inline. | Rewrite suggestions on any site fix tone without rewriting the whole email. |
| 18 | Monica reads the page so you do not have to | Monica | Monica's sidebar summarises articles, translates selections and drafts replies with GPT, Claude or Gemini. | One AI assistant across every tab with a model switcher built in. |
| 19 | QuillBot paraphrases inside Google Docs | QuillBot | Select a paragraph in Docs and QuillBot rewrites it in standard, fluent or formal mode on the spot. | Paraphrasing and grammar inside the editor beats pasting text into a separate site. |
| 20 | Record a bug and hand the report to ChatGPT | Bugpilot: Console and Network Bug Reports for AI | Bugpilot records console, network and DOM into one trimmed Markdown report that ChatGPT or Cursor can debug. | AI-ready bug reports replace the screenshot and the vague it broke message. |
9. Chrome flags and settings nobody uses 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Chrome has a RAM saver and you never turned it on | chrome://settings/performance Memory Saver, Auto Tab Discard | Memory Saver sleeps idle tabs, and Auto Tab Discard lets you pick exactly which ones and when. | Together they cut Chrome's RAM in half without losing a single tab. |
| 2 | Energy Saver is why your laptop lasts an extra hour | chrome://settings/performance Energy Saver, LeoTabs - Tab Manager & Switcher | Energy Saver throttles background tabs on battery, and LeoTabs puts whole working sets away so there is nothing to throttle. | Fewer open tabs plus Energy Saver is the cheapest battery upgrade you can make. |
| 3 | Chrome has a built-in reader mode. It is in the side panel | Reading mode side panel, Columnary | Open the side panel, pick Reading mode, and the article loses its ads; Columnary then lays it out in newspaper columns. | Reading mode plus Columnary makes long articles readable on a wide monitor. |
| 4 | Chrome can save your tab groups. Most people lose them | chrome://flags/#tab-groups-save, TabGroup Vault: Tab Group Backup and Session Buddy Alternative | Flip the saved tab groups flag and your groups survive a restart; TabGroup Vault backs them up as JSON. | Saved groups plus a vault export means a crashed Chrome never costs you a project again. |
| 5 | Smooth scrolling is a flag. Vimium makes it keyboard-only | chrome://flags/#smooth-scrolling, Vimium | Turn on smooth scrolling then press j and k and Vimium glides the page without a mouse. | One flag and one extension turn Chrome into a keyboard-driven reader. |
| 6 | Chrome has a secret dark mode for every website | chrome://flags/#enable-force-dark, Dark Reader | Force Dark inverts every site in one flag, and Dark Reader fixes the sites it breaks. | Use the flag for speed and Dark Reader for the per-site control the flag lacks. |
| 7 | Ctrl+Shift+A searches tabs. This extension searches better | Tab search, Tab Manager Plus for Chrome | Chrome's tab search finds a tab by title, Tab Manager Plus shows all windows at once and lets you drag them around. | Built-in search for finding, Tab Manager Plus for actually organising. |
| 8 | Move Chrome's side panel to the left. Then fill it | chrome://settings/appearance side panel, ChatPanel - Privacy-First AI Agent | The side panel position setting is hidden in appearance, and ChatPanel puts a local AI agent inside it. | A left-side panel with a private AI assistant becomes a second brain you never close. |
| 9 | Chrome can caption any video offline | chrome://settings/accessibility Live Caption, Overline | Live Caption transcribes any audio on-device, and Overline adds translated captions in ten languages on top of the video. | Captions for everything, including the videos that never shipped subtitles. |
| 10 | Chrome groups your history into Journeys | chrome://history/journeys, Vertex | Journeys clusters your history by topic, and Vertex turns the pages you care about into a searchable knowledge graph. | History clusters find what you read, Vertex keeps a snapshot before the page disappears. |
| 11 | Hover a tab for a preview. Hover a link for a summary | chrome://flags/#tab-hover-card-images, portaltext | Tab hover card images show a thumbnail of every tab, and portaltext summarises any link before you click. | Previews everywhere mean fewer tabs opened just to check. |
| 12 | Chrome can tell you which passwords leaked | chrome://password-manager/checkup, Bitwarden Password Manager | Password Checkup lists every compromised and reused password, and Bitwarden is where the new ones should live. | Run the checkup, then move everything into a vault that works outside Chrome too. |
| 13 | Run Safety Check once a month. Then add this | chrome://settings/safetyCheck, Malwarebytes Browser Guard | Safety check flags bad extensions and old versions, Malwarebytes Browser Guard watches the sites in between. | Built-in check for the browser, Browser Guard for the web. |
| 14 | Chrome preloads pages you never clicked | chrome://settings/performance Preload pages, Privacy Badger | Preloading makes links instant but fetches pages you never visit; Privacy Badger stops the trackers on them. | Keep the speed, drop the tracking. |
| 15 | Chrome can auto pop-out video when you switch tabs | chrome://flags/#auto-picture-in-picture-for-video-playback, PiP Cue - Picture in Picture for YouTube and Every Video | Flip the auto picture-in-picture flag and video floats when you leave the tab; PiP Cue adds captions and a speed control to the floating window. | Hands-free PiP for every site, not only YouTube. |
| 16 | Chrome has per-site sound settings. This adds an EQ | chrome://settings/content/sound, FreqWave EQ | Site sound settings mute whole domains, and FreqWave EQ adds an eight-band equaliser with a voice enhancer. | Silence the sites that autoplay, fix the ones that mumble. |
| 17 | Chrome has an AI model inside it. One flag turns it on | chrome://flags/#optimization-guide-on-device-model, Vibe Reading (offline PDF translation with Gemini Nano) | Enable the on-device model flag and Gemini Nano downloads, then Vibe Reading translates whole PDFs offline with it. | Private, free translation that works on a plane. |
| 18 | WebGPU lets this extension run an LLM in your tab | chrome://flags/#enable-unsafe-webgpu, Skim Recap | With WebGPU on, Skim Recap runs Gemma locally and summarises the text you scrolled past. | Your GPU does the summarising, so nothing you read leaves the machine. |
| 19 | Make Chrome forget cookies when you close it | chrome://settings/content/siteData, Cookie-Editor | The delete-on-close setting wipes cookies every exit, and Cookie-Editor lets you export the few you want to keep. | Clean sessions daily without logging into everything again. |
| 20 | Chrome has a reading list. Nobody uses it | chrome://read-later Reading list, Raindrop.io | The reading list sits in the side panel, and Raindrop.io is where saves go when they deserve tags and search. | Reading list for today, Raindrop.io for everything worth keeping. |
10. Keyboard shortcut Shorts 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Alt+Shift+D makes any site dark | Dark Reader, Alt+Shift+D | Press Alt+Shift+D and Dark Reader flips the current site to dark without opening a menu. | One shortcut toggles dark mode per site, instantly. |
| 2 | Press F and never touch a mouse again | Vimium, F | With Vimium installed, press F and every link grows a two-letter label you can type. | Link hints let you navigate any page from the keyboard. |
| 3 | Alt+Shift+1 clears every tab in one press | OneTab, Alt+Shift+1 | Alt+Shift+1 sends all your tabs into OneTab and frees the memory instantly. | OneTab's default shortcut is a panic button for tab overload. |
| 4 | D makes every video faster | Video Speed Controller, D and S | Tap D on any HTML5 video to speed up and S to slow down, no settings menu. | Video Speed Controller works on every site, not only YouTube. |
| 5 | Alt+Shift+P captures the full page | GoFullPage - Full Page Screen Capture, Alt+Shift+P | Press Alt+Shift+P and GoFullPage scrolls and stitches the whole page into one image. | Full-page screenshots without an app, one shortcut. |
| 6 | Alt+P floats any video over your work | Picture-in-Picture Extension (by Google), Alt+P | Alt+P pops the playing video into a floating window that stays above every tab. | Google's own PiP shortcut works on sites that hide the button. |
| 7 | Ctrl+Shift+M draws on any website | MarkUp: Annotate webpages, prompt AI agents, Ctrl+Shift+M | Press Ctrl+Shift+M and MarkUp lets you draw arrows and callouts on the live page. | Annotated screenshots for feedback or AI prompts, one shortcut. |
| 8 | Ctrl+O no longer opens a file | Clico brings GPT, Claude, & Gemini to every page you browse, Ctrl+O | Inside any text box, Ctrl+O opens Clico's AI dialog that writes at the cursor. | A shortcut you never used becomes your AI writing key. |
| 9 | Ctrl+Shift+A finds the tab you lost | Tab search Ctrl+Shift+A, LeoTabs - Tab Manager & Switcher | Ctrl+Shift+A searches every open tab by title, and LeoTabs searches the ones you put away too. | Tab search for open tabs, LeoTabs for collections. |
| 10 | Ctrl+Shift+T brings back the tab you just closed | Ctrl+Shift+T, TabGroup Vault: Tab Group Backup and Session Buddy Alternative | Ctrl+Shift+T reopens closed tabs one by one, and TabGroup Vault restores a whole group you closed last week. | The shortcut for accidents, the vault for everything older. |
| 11 | Ctrl+Shift+Delete wipes your cookies. Export first | Ctrl+Shift+Delete, Cookie-Editor | Ctrl+Shift+Delete opens clear browsing data, and Cookie-Editor saves the login cookies you want to keep before you nuke the rest. | Clean the browser without losing every session. |
| 12 | Ctrl+D saves a bookmark you will never open | Ctrl+D, Twitter and X Bookmarks on New Tab - Totem | Ctrl+D files a bookmark away forever; Totem puts your X bookmarks on every new tab as a timed reading queue. | Bookmarks that show up on their own get read. |
| 13 | Ctrl+H shows history. This finds the dead pages | Ctrl+H, PastPage: Query 10+ Web Archives at Once | Ctrl+H opens your history, and when the page is gone PastPage pulls it from eleven web archives. | History remembers the URL, PastPage recovers the content. |
| 14 | F12 opens DevTools. This exports it | F12, DevTools Export | F12 shows console and network, and DevTools Export turns them into a shareable bug report in one click. | Stop screenshotting the console. |
| 15 | Ctrl+Shift+C inspects an element. Qursor copies it for AI | Ctrl+Shift+C, Qursor | Ctrl+Shift+C picks an element in DevTools, and Qursor copies its selectors, styles and fonts as Markdown for your coding agent. | Inspect for you, Qursor for the AI. |
| 16 | Ctrl+U shows source. This shows Markdown | Ctrl+U, .MD this page | Ctrl+U dumps raw HTML, and .MD this page converts the article into clean Markdown instead. | Readable Markdown beats view-source for notes and AI prompts. |
| 17 | Ctrl+Shift+V pastes without the formatting | Ctrl+Shift+V, CacheTray - Clipboard for AI Workflows | Ctrl+Shift+V pastes plain text, and CacheTray keeps a tray of everything you copied so nothing gets overwritten. | Plain paste for formatting, CacheTray for clipboard history. |
| 18 | Shift+Esc shows which tab is eating your RAM | Shift+Esc, Auto Tab Discard | Shift+Esc opens Chrome's task manager, and Auto Tab Discard sleeps the tabs at the top of the list automatically. | Find the hog, then stop it from coming back. |
| 19 | Ctrl+Shift+N is not the only way to hide what you watch | Ctrl+Shift+N, YT Profiles - Multiple Watch Profiles for One Account | Incognito keeps YouTube out of your history, and YT Profiles gives one account separate recommendation profiles. | Netflix-style profiles on YouTube without logging out. |
| 20 | Ctrl+Shift+B hides the bookmarks bar. Then try this new tab | Ctrl+Shift+B, dashi - a calm new tab | Ctrl+Shift+B toggles the bookmarks bar, and dashi replaces the new tab with notes, to-dos and timers in 214 KB. | A cleaner Chrome in one shortcut and one lightweight new tab. |
11. Tab management workflows 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | 47 tabs open? Save them all in one click | TabGroup Vault: Tab Group Backup and Session Buddy Alternative | Chrome just crashed and took your 47 tabs with it. | TabGroup Vault backs up every tab group automatically and restores it in one click, with export to Markdown or CSV. |
| 2 | Chrome forgot your tabs again. It won't after this | Session Buddy | You restart Chrome and every window you had open is gone. | Session Buddy snapshots every window and tab so a crash or restart is a one-click restore, not a lost afternoon. |
| 3 | Snooze a tab like an alarm clock | AnySnooze: Snooze Tabs & Tab Reminders | That tab you are keeping open for Friday is costing you RAM for four days. | Type 'friday 9am' and AnySnooze closes the tab and reopens it exactly on time, no account needed. |
| 4 | Put an entire project away in one click | LeoTabs - Tab Manager & Switcher | Your client project is 23 tabs and you need them gone until Monday. | LeoTabs stores whole working sets as collections with notes and resumes only the tabs you actually need. |
| 5 | 100 tabs became 1 list in two seconds | OneTab | Watch 100 tabs collapse into a single page. | OneTab turns every open tab into a restorable list and frees most of the memory Chrome was eating. |
| 6 | Stop hoarding tabs. Start a board instead | Toby | Tabs are not a to-do list, but you keep using them like one. | Toby turns the tab bar into drag-and-drop collections with a visual new tab board so nothing has to stay open. |
| 7 | One workspace per client, zero tab chaos | Workona | Three clients, one window, and you cannot find the right Gmail. | Workona gives each project its own workspace with tabs, docs and notes, and switching takes one click. |
| 8 | Find that one tab in 300 instantly | Tab Manager Plus | Somewhere in these 300 tabs is the invoice you need right now. | Tab Manager Plus searches every window by title or URL and jumps straight to the tab, with duplicate detection built in. |
| 9 | This extension closes tabs you forgot about | Tab Wrangler | Half your tabs have not been touched in a week. | Tab Wrangler auto-closes idle tabs after a timer you set and keeps them in a corral so nothing is actually lost. |
| 10 | Your tabs as a tree, not a bar | Tabs Outliner | The tab bar hides which tab opened which. | Tabs Outliner shows every window as a collapsible tree so research threads stay grouped and closable in bulk. |
| 11 | Chrome is eating 8GB. Here is the fix | Auto Tab Discard | Chrome is using more RAM than your video editor. | Auto Tab Discard suspends background tabs after a set time and reloads them when clicked, cutting memory use dramatically. |
| 12 | Switch tabs without touching the mouse | Vimium | Every tab switch is a mouse trip you do 200 times a day. | Vimium adds keyboard shortcuts to jump, search and close tabs so the whole tab bar runs from the home row. |
| 13 | Your new tab is wasted space. Fix it in 214KB | dashi - a calm new tab | You open a new tab 80 times a day and it shows you nothing. | dashi turns the new tab into a dashboard of notes, to-dos, habits and timers with no account and no tracking. |
| 14 | Your X bookmarks, served on every new tab | Twitter and X Bookmarks on New Tab - Totem | You have 900 saved tweets you will never read. | Totem puts your X bookmarks on the new tab as a reading queue sized to 5, 15 or 30 minutes a day. |
| 15 | A chess puzzle every time you open a tab | LeetChess | What if a new tab made you smarter instead of scrolling? | LeetChess replaces the new tab with Elo-rated puzzles so every blank tab becomes a thirty-second training rep. |
| 16 | Pull the video out of the tab and keep working | PiP Cue - Picture in Picture for YouTube and Every Video | You keep flipping back to the tutorial tab to see what they clicked. | PiP Cue floats any video over your other tabs with captions, A-B loop and speed control. |
| 17 | A pet that follows you across every tab | Pawly - Virtual Pet and Productivity | There is a pet living in your tab bar and it is hungry. | Pawly syncs a virtual pet across all tabs with mood tracking and a task manager so finishing work feeds it. |
| 18 | Collect from 10 tabs, send to AI in one click | CacheTray - Clipboard for AI Workflows | Copy, switch tab, paste, switch tab, copy, you know the loop. | CacheTray collects screenshots, links and code from any tab into a tray and sends the whole batch to Claude or ChatGPT at once. |
| 19 | Fix tinny audio in one tab, not the whole PC | FreqWave EQ | That one meeting tab sounds like a tin can and the rest are fine. | FreqWave EQ applies an 8-band equalizer and voice enhancer per tab, with a live spectrum so you see the fix. |
| 20 | The new tab you see 100 times a day | Momentum | You stare at the new tab page more than any website. | Momentum replaces it with one daily focus, a to-do list and a photo so every new tab resets your attention. |
12. Bookmarklets as no-install extensions 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Reader mode in one line of JavaScript | Mercury Reader | This button strips every ad off the page and it is not an extension. | A bookmarklet that keeps only the article element does what Mercury Reader does, and the extension adds typography and dark mode on top. |
| 2 | Copy every tab URL with zero installs | OneTab | You need all your tab links in a message right now. | A bookmarklet cannot see other tabs, so it copies the current one; OneTab grabs every URL in the window, which is where the extension earns its spot. |
| 3 | Dark mode on any site, no extension | Dark Reader | One line of CSS turns this white page black. | An invert-filter bookmarklet gives instant dark mode, while Dark Reader fixes the inverted images and remembers per-site settings. |
| 4 | Print any page without the junk | Print Friendly & PDF | Printing this article wastes four pages on menus and ads. | A bookmarklet that hides nav, sidebar and footer before print.css does the basics; Print Friendly & PDF lets you delete paragraphs and export a PDF. |
| 5 | Word count for any page, one click | Word Counter Plus | How long is this article actually? | A bookmarklet that counts words in the selection or body gives the number; Word Counter Plus adds reading time and character counts from the right-click menu. |
| 6 | See every cookie a site set on you | Cookie-Editor | This page just set 14 cookies and you can list them in one click. | A document.cookie bookmarklet shows the readable cookies; Cookie-Editor also shows HttpOnly ones and lets you edit, delete and export them. |
| 7 | Reveal the password behind the dots | Bitwarden Password Manager | Chrome autofilled a password you do not remember. | A bookmarklet that flips password fields to text reveals it once; Bitwarden stores it so you never need the trick again. |
| 8 | Edit any website like a Google Doc | SiteTweak - Edit Any Site with AI | Click this and every word on the page becomes editable. | A designMode bookmarklet makes the page editable for a screenshot; SiteTweak writes real CSS and JS from a plain-English request and remembers it per site. |
| 9 | Dead link? Time travel in one click | PastPage: Query 10+ Web Archives at Once | The page is 404 but the internet never forgets. | A bookmarklet that prepends web.archive.org to the URL jumps to the Wayback copy; PastPage searches ten archives at once and diffs versions. |
| 10 | Kill every sticky header in one click | Ohm | That floating bar follows you down the page like a bad smell. | A bookmarklet that sets fixed and sticky elements to static clears them for this visit; Ohm saves cosmetic filter rules per site so they stay gone. |
| 11 | Turn this page into a QR code instantly | QR Code Generator | Send this page to your phone without typing a thing. | A bookmarklet that opens a QR image of the current URL works on any site; the QR Code Generator extension does it from the toolbar with download and custom text. |
| 12 | Copy any page as Markdown, no install | .MD this page | Your AI wants Markdown and this page is a mess of divs. | A bookmarklet that copies title and URL as a Markdown link covers quick notes; .MD this page converts the whole article with Readability, images and metadata. |
| 13 | Read long articles like a newspaper | Columnary | Lines this wide are why you skim instead of read. | A CSS columns bookmarklet splits the body into readable columns; Columnary does it with horizontal scrolling and keeps images and tables intact. |
| 14 | Blur the whole page before you screen share | DataBlur: Blur Screen and Hide Sensitive Data | You are about to share your screen with your bank tab open. | A filter blur bookmarklet hides the page instantly; DataBlur blurs only passwords, keys and names and toggles with a hotkey during calls. |
| 15 | Make Chrome read this page aloud, free | Readox - Read Aloud Text to Speech for Web Pages & PDFs | Chrome already has a voice built in and one line of code wakes it up. | A speechSynthesis bookmarklet reads the selected text; Readox adds word highlighting, PDFs, OCR and a reading queue. |
| 16 | Swap every font on a site with one click | Tinkerfont | What would this site look like in a different font? | A bookmarklet that sets font-family on everything previews one font; Tinkerfont lets you test 1,959 fonts and saves the rule per hostname. |
| 17 | Comic Sans the entire internet | Retro Y2K Theme: 90s Vintage Web Aesthetic | RawY2K | One click and this serious website becomes 1998. | A Comic Sans bookmarklet is the joke version; Retro Y2K adds scanlines, Windows 98 buttons and a marquee visitor counter for the full throwback. |
| 18 | Replace any word on any page with anything | Enshittifier - Dead Internet companion | Every 'AI' on this page is about to become something else. | A find-and-replace bookmarklet swaps text in the DOM once; Enshittifier does it on every page with effects and per-site exclusions. |
| 19 | Speed up any video past 2x with one click | Video Speed Controller | The site caps playback at 2x but the browser does not. | A playbackRate bookmarklet sets any HTML5 video to 3x; Video Speed Controller adds keyboard shortcuts and remembers the speed per site. |
| 20 | Picture-in-picture on sites that block it | PiP Cue - Picture in Picture for YouTube and Every Video | The site hid the PiP button but the browser API is still there. | A requestPictureInPicture bookmarklet pops the video out; PiP Cue adds captions, transcripts and A-B loop to the floating window. |
13. Extensions for YouTube creators 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | The tag tool every big YouTuber runs | TubeBuddy | Your title is good, your tags are a guess. | TubeBuddy scores tags, suggests keywords and runs A/B tests on thumbnails right inside YouTube Studio. |
| 2 | See a competitor's views per hour | vidIQ | That video got 50k views and you can see how fast. | vidIQ overlays views per hour, tags and SEO score on every video page so you learn what is working in real time. |
| 3 | Stop poisoning your own YouTube algorithm | YT Profiles - Multiple Watch Profiles for One Account | Your competitor research is wrecking your home feed. | YT Profiles gives one account Netflix-style profiles so research and personal viewing keep separate histories and recommendations. |
| 4 | Live captions on any video, 10 languages | Overline | That Japanese creator's editing is insane and you cannot understand a word. | Overline overlays real-time AI captions and translation on any browser video so you can study creators in any language. |
| 5 | Record tutorials that zoom to every click | Screen Awesome - Record, Capture & Annotate | Your screen recordings look flat because nothing moves. | Screen Awesome records to MP4 with auto-zoom that glides to each click and adds arrows, blur and annotations. |
| 6 | Turn a boring screenshot into B-roll | Portfolio Frame - Screenshot Beautifier and Mockup Generator | A raw screenshot on screen for five seconds kills retention. | Portfolio Frame wraps screenshots in device and browser mockups with annotations, batch exported with no uploads. |
| 7 | Copy text straight out of a video frame | OCR It | The code on screen in that tutorial is not in the description. | OCR It pins a screen region and a hotkey reads the text out of any frame locally with Tesseract. |
| 8 | Write your script by talking, not typing | Tapfree: Voice Dictation | You talk for a living, so why are you typing scripts? | Tapfree turns natural speech into cleanly structured text in Google Docs so a ten-minute ramble becomes a draft. |
| 9 | Free grammar check for descriptions, your own key | GemType - AI Writing Assistant | A typo in your pinned comment lives forever. | GemType gives Grammarly-style checking and rewriting on YouTube Studio with your own Gemini key, free and open source. |
| 10 | Reply to 200 comments without leaving the box | Clico brings GPT, Claude, & Gemini to every page you browse | Comment replies take an hour and you have 200 waiting. | Press Ctrl+O inside the comment box and Clico drafts a reply at the cursor from GPT, Claude or Gemini. |
| 11 | Find video ideas before they trend | X Viral Monitor | Every viral tweet is a video idea 48 hours early. | X Viral Monitor adds views-per-hour badges and a leaderboard to X so you spot the fastest-moving topics in your niche. |
| 12 | Clip 20 videos into one research notebook | Web Clipper for NotebookLM (Notebook Clipper) | Research for one video is 20 tabs and zero notes. | Notebook Clipper saves videos, playlists and threads into NotebookLM in one click so Gemini can summarise them for your script. |
| 13 | Where do top creators put their sponsor? | SponsorBlock for YouTube - Skip Sponsorships | Thousands of viewers have already marked where every sponsor read sits. | SponsorBlock's crowd segments show exactly where big channels place sponsors and intros so you can time your own. |
| 14 | See the dislikes YouTube hid on your videos | Return YouTube Dislike | YouTube hides your dislikes from you too. | Return YouTube Dislike restores the estimated ratio so you can audit which videos actually missed. |
| 15 | Frame-step and screenshot inside YouTube | Enhancer for YouTube | You need the exact frame of that transition and YouTube will not let you. | Enhancer for YouTube adds frame stepping, screenshots, loop and custom speed to the player for studying edits. |
| 16 | Search volume inside YouTube search | Keywords Everywhere | You guessed the title, this tells you the number. | Keywords Everywhere shows monthly search volume and related terms right in the YouTube search bar. |
| 17 | Pitch sponsors with a 2-minute Loom | Loom | Sponsors ignore your email but they watch a face. | Loom records you plus your analytics tab and gives a link with view tracking so you know who watched the pitch. |
| 18 | Study foreign creators with dual subtitles | Language Reactor | The best editing tutorials in your niche are in Korean. | Language Reactor shows two subtitle tracks and hover translations on YouTube so you can learn from creators in any language. |
| 19 | Is your thumbnail text readable? Drag to check | Area Contrast Checker - Drag to Scan WCAG and APCA | Your thumbnail text disappears on phones and this proves it. | Area Contrast Checker drags over the thumbnail and reads real contrast from the pixels, even on gradients and photos. |
| 20 | Watch the tutorial while you edit | PiP Cue - Picture in Picture for YouTube and Every Video | Alt-tab to the tutorial, alt-tab back, repeat forty times. | PiP Cue floats the tutorial over your editor with A-B loop so one tricky step repeats until you have it. |
14. Extensions for Shopify / Amazon sellers 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | The price history graph every seller checks | Keepa - Amazon Price Tracker | This product dropped 40 percent six times this year. | Keepa shows years of price and sales-rank history on every Amazon page so you can see seasonality before you buy stock. |
| 2 | Guess the monthly sales. Now see the real number | Jungle Scout | That listing does 2,400 units a month and the seller will not tell you. | Jungle Scout estimates monthly sales, revenue and competition for any Amazon search page in one click. |
| 3 | X-ray any Amazon niche in 10 seconds | Helium 10 | This niche makes 1.2 million a month across 20 listings. | Helium 10's Xray lays out revenue, reviews and BSR for the whole search page so you know if a niche is worth entering. |
| 4 | Niche score before you spend a dollar | AMZScout PRO | Would you launch here if you knew the top seller does 90 percent of volume? | AMZScout PRO scores a niche on demand, competition and margin and estimates every listing's monthly sales. |
| 5 | BSR on the search page, no clicking in | DS Amazon Quick View | Opening 48 listings to check rank is a wasted hour. | DS Amazon Quick View prints sales rank and seller count under every search result so the scan takes one scroll. |
| 6 | Reveal any Shopify store's best sellers | Koala Inspector | Their store is public and so is their best-seller list. | Koala Inspector shows a Shopify store's products, theme, apps and sales trends so competitor research takes seconds. |
| 7 | Which products do they actually sell? | Commerce Inspector | Every Shopify store leaks its catalogue order. | Commerce Inspector surfaces best sellers, newly added products and app stack for any Shopify store you visit. |
| 8 | Spy on a Shopify store's sales and ads | PPSPY | You are about to see their estimated daily sales. | PPSPY estimates orders, traffic and ad activity for Shopify stores so you can tell real winners from pretty themes. |
| 9 | Are your competitor's reviews fake? | Fakespot | Four and a half stars, and a third of them are fake. | Fakespot grades review authenticity on Amazon and adjusts the rating so you know what you are really competing against. |
| 10 | How much traffic does their store get? | Similarweb | Their Shopify store gets 180,000 visits a month, here is where from. | Similarweb shows traffic, sources and top keywords for any domain so you see which channels competitors live on. |
| 11 | Is your brand name reading as a knockoff? | Knockoff - Amazon Shopping Filter | Shoppers now have a filter that hides brands that look fake. | Knockoff checks every Amazon brand against 5,500 real companies, so sellers can see whether their own listing gets flagged. |
| 12 | Get pinged when a competitor drops price | Dropy - Price Tracker and Price Drop Alerts | Your rival cut price at 2am and you found out a week later. | Dropy tracks any product page on Amazon, eBay or AliExpress and alerts you the moment a competitor's price moves. |
| 13 | Shoppers see this before they buy from you | Muchita Shopping - Compare Prices, Find It Cheaper | Buyers now get told in one click who sells your product cheaper. | Muchita searches other retailers for the lowest verified offer, so sellers can see exactly who undercuts them. |
| 14 | Scrape a competitor catalogue to Excel | Web Data Scraper - Extract & Export to CSV/Excel/JSON | 400 competitor products in a spreadsheet, no code. | Web Data Scraper point-and-clicks any product grid into CSV, Excel or Google Sheets with scheduled reruns. |
| 15 | Product mockups for ads in 30 seconds | Portfolio Frame - Screenshot Beautifier and Mockup Generator | Your ad creative is a screenshot of your own listing. | Portfolio Frame turns store screenshots into device and social-ready mockups with annotations, batch exported in-browser. |
| 16 | Your store on 5 phones at once | Mobile View - Mobile Simulator & Preview | 70 percent of your buyers are on a phone you have never tested. | Mobile View previews your storefront on up to five iPhone, Android and tablet sizes side by side with desktop. |
| 17 | What theme and apps is that store running? | LoupeKit - Web Tech & AI Vibe-Code Inspector | Their checkout converts better and here is the stack behind it. | LoupeKit names a store's theme, apps and tracking pixels with evidence and extracts its palette and fonts. |
| 18 | That Seller Central email is a trap | Phixo - AI Phishing Protection for Gmail & Outlook | Fake Amazon suspension emails hit sellers every single day. | Phixo scans each Gmail or Outlook message in under three seconds with four AI layers and flags the phishing before you click. |
| 19 | Fix listing typos with your own Gemini key | GemType - AI Writing Assistant | One typo in a bullet point costs conversions for months. | GemType checks and rewrites listing copy anywhere in the browser using your own Gemini API key, free and open source. |
| 20 | Pull prices out of competitor images | OCR It | They hid their price list inside a JPEG. | OCR It pins a region and a hotkey reads text out of any image or scanned PDF locally, no cloud upload. |
15. Extensions for job hunters 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Resume vs job post: see the match score | Teal | Your resume matches this job 41 percent and the ATS knows it. | Teal scores your resume against any job description and shows the missing keywords to add before applying. |
| 2 | Autofill 50 applications in an afternoon | Simplify Copilot - Autofill your job applications | You have typed your address into Workday 60 times this month. | Simplify Copilot fills application forms from your saved profile on Greenhouse, Lever and Workday in one click. |
| 3 | The keywords your resume is missing | Jobalytics | The job post says SQL eleven times and your resume says it zero. | Jobalytics compares your resume to the job description and lists the keywords to add for ATS screening. |
| 4 | Track 40 applications without a spreadsheet | Huntr | You cannot remember if you applied here already. | Huntr saves any job post to a kanban board with contacts, notes and stage tracking straight from the listing page. |
| 5 | Your LinkedIn profile, scored out of 100 | Careerflow | Recruiters skip your profile in four seconds, here is why. | Careerflow audits headline, about and skills on LinkedIn and gives fixes that raise your profile score. |
| 6 | Turn your LinkedIn into a resume in one click | Kickresume | Your LinkedIn is up to date, your resume is from 2021. | Kickresume imports your LinkedIn profile into designed resume templates with AI suggestions for each section. |
| 7 | Apply to 100 jobs while you sleep | LazyApply | What if the apply button pressed itself? | LazyApply auto-applies to matching jobs on LinkedIn, Indeed and ZipRecruiter using your saved answers. |
| 8 | The cover letter typo that cost the job | Grammarly | One wrong word in the first line and the recruiter stopped reading. | Grammarly checks grammar, tone and clarity inside Gmail, LinkedIn and application forms before you hit send. |
| 9 | Find the hiring manager's email in 5 seconds | Hunter | Skip the apply portal and email the person who decides. | Hunter finds verified email addresses for any company domain so you can reach the hiring manager directly. |
| 10 | LinkedIn without the feed. Just jobs | LinkedIn Feed Blocker | You opened LinkedIn to apply and lost 40 minutes to the feed. | LinkedIn Feed Blocker removes the home feed and infinite scroll while jobs, search and messaging keep working, in a 14 KB extension. |
| 11 | Rewrite your About section for free | GemType - AI Writing Assistant | Your LinkedIn About reads like a job description from 2015. | GemType rewrites and checks text on any site with your own Gemini key, so the polish is free and open source. |
| 12 | Dictate the cover letter, edit the rest | Tapfree: Voice Dictation | You explain yourself better out loud than on paper. | Tapfree turns a spoken two-minute pitch into structured text in Docs or Gmail that you trim into a cover letter. |
| 13 | Reply to recruiters without leaving the message | Clico brings GPT, Claude, & Gemini to every page you browse | Five recruiter messages, one hour, and you are stuck on the first. | Press Ctrl+O inside the LinkedIn message box and Clico drafts a reply at the cursor with GPT, Claude or Gemini. |
| 14 | Snooze the job post until follow-up day | AnySnooze: Snooze Tabs & Tab Reminders | You said you would follow up in a week and you forgot. | AnySnooze closes the job tab and reopens it on 'next tuesday 9am' so every follow-up happens on time. |
| 15 | Turn the job post into an interview quiz | Quizzyly | The interview questions are hidden inside the job description. | Quizzyly turns any job page into a quiz and answers questions grounded in it, so you rehearse against the actual requirements. |
| 16 | The job post was deleted. Get it back | PastPage: Query 10+ Web Archives at Once | The listing is gone and your interview is tomorrow. | PastPage searches the Wayback Machine and ten other archives at once to recover the deleted job description. |
| 17 | That recruiter email is a scam. Here is how to tell | Phixo - AI Phishing Protection for Gmail & Outlook | Fake recruiter emails are the fastest growing scam on job seekers. | Phixo scans Gmail and Outlook with four AI layers and flags phishing in under three seconds without storing the email. |
| 18 | Hide your private data before the screen share | DataBlur: Blur Screen and Hide Sensitive Data | You are about to demo your portfolio with your bank tab open. | DataBlur blurs passwords, emails and names with one click so a live interview demo shows only what you intend. |
| 19 | Scrape 200 job listings into a sheet | Web Data Scraper - Extract & Export to CSV/Excel/JSON | Every job board result into one spreadsheet, no code. | Web Data Scraper point-and-clicks listing titles, companies and links into Google Sheets with scheduled reruns. |
| 20 | Portfolio screenshots that look designed | Portfolio Frame - Screenshot Beautifier and Mockup Generator | Your portfolio is raw screenshots and it shows. | Portfolio Frame wraps work screenshots in device and browser mockups with redaction, exported in batch with no uploads. |
16. Extensions for teachers and students 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Turn any PDF into a quiz in one click | Quizzyly | Your textbook chapter just became a ten-question quiz before you finished reading it. | Quizzyly builds quizzes, grounded answers and a TL;DR mind map from any web page or PDF. |
| 2 | The read-aloud that highlights every word | Readox - Read Aloud Text to Speech for Web Pages & PDFs | Dyslexic students read faster when the words light up as they are spoken. | Readox reads pages, PDFs and selections aloud with word-by-word highlighting and a reading queue. |
| 3 | Translate a whole research paper offline | Vibe Reading (offline PDF translation with Gemini Nano) | Foreign-language papers translate paragraph by paragraph without leaving your laptop. | Vibe Reading uses Chrome's on-device Gemini Nano to translate PDFs side by side, no upload. |
| 4 | Learn vocab from Netflix subtitles | Sublern - AI Translate Words in Video Subtitles | Hover a subtitle word, hear it, save it, and it comes back as a flashcard tomorrow. | Sublern turns video subtitles into a spaced-repetition vocabulary deck. |
| 5 | A dictionary that understands idioms | QuickDef - AI Dictionary for PDFs & English Learners | 'Pull it off' is not about clothes, and this extension knows that. | QuickDef gives context-aware definitions for phrasal verbs and whole phrases on pages and PDFs. |
| 6 | Highlight a math problem, get it solved step by step | Kogvio | Circle the equation on the page and the explanation appears next to it. | Kogvio lets students ask AI about highlighted text, images and diagrams without switching tabs. |
| 7 | Save a lecture video straight into NotebookLM | Web Clipper for NotebookLM (Notebook Clipper) | Every reading, video and thread for your course lands in one notebook with one click. | Notebook Clipper sends pages, PDFs, YouTube videos and playlists into NotebookLM as sources. |
| 8 | Your phone is now a Google Slides remote | Copresent - Remote Control for Google Slides | Teachers, stop walking back to the laptop to hit next. | Copresent gives swipe control, speaker notes, a timer and QR audience questions for Slides. |
| 9 | Read a journal paper in half the time | Bioscript: AI Copilot for Academic Research | PubMed abstracts stop being a wall of jargon with this sidebar on. | Bioscript summarises papers, defines terms and pulls methodology and figures on Scholar and journal pages. |
| 10 | OCR a scanned textbook page by page | OCR It | Pin one region of the scanned PDF and every page after it gets read for you. | OCR It runs local Tesseract on a pinned screen area and auto-turns pages through scans. |
| 11 | Mark up student PDFs without printing | Kami | Grade thirty essays in the browser and never touch a printer. | Kami annotates, comments and signs PDFs with Google Classroom integration. |
| 12 | Leave voice comments on Google Docs | Mote | A thirty-second voice note beats a paragraph of red ink every time. | Mote records voice feedback inside Google Docs, Slides and Classroom with transcription. |
| 13 | Make Google Slides interactive for the class | Pear Deck | Every student answers on their own screen while your slide is still up. | Pear Deck adds live questions, polls and drawing prompts to Google Slides. |
| 14 | Clip a YouTube video into a lesson with questions | Edpuzzle | The video pauses itself until the student answers the question. | Edpuzzle trims videos and embeds questions, voiceover and progress tracking. |
| 15 | Cite any page in one click for your essay | Zotero Connector | Bibliography night ends when the citation saves itself as you read. | Zotero Connector grabs metadata and PDFs from any page into your reference library. |
| 16 | Dual subtitles for language class | Language Reactor | Two subtitle tracks at once, click any word, hear it slowly. | Language Reactor adds dual subtitles, word lookup and playback control to YouTube and Netflix. |
| 17 | Type math equations by voice or handwriting | Equatio | Dictate the quadratic formula and watch it typeset itself. | Equatio inserts equations, graphs and chemistry into Docs and Forms by typing, voice or handwriting. |
| 18 | Annotate the web as a class discussion | Hypothesis | The margin of the article becomes the seminar room. | Hypothesis lets groups highlight and discuss any page or PDF in shared annotation layers. |
| 19 | A tree dies if you open TikTok during study | Forest | Twenty-five minutes of focus or the tree you planted withers. | Forest blocks distracting sites during timed sessions and tracks your focus streak. |
| 20 | Share a page to the whole class in one click | Google Classroom | Push this exact article to every student before the bell rings. | The Google Classroom extension shares any page as an assignment or announcement instantly. |
17. Extension install-to-result in 20 sec 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Install this, every AI headline turns to poop | Enshittifier - Dead Internet companion | Twelve seconds after install the word AI is gone from the internet. | Enshittifier swaps every uppercase AI with an emoji of your choice, with per-site exclusions. |
| 2 | Your browser just time-travelled to 1998 | Retro Y2K Theme: 90s Vintage Web Aesthetic | RawY2K | Comic Sans, scanlines and an under-construction GIF on the New York Times. | RawY2K restyles any modern site into a 90s page in one click. |
| 3 | Any web page to Markdown in two seconds | .MD this page | Click once and the article is clean Markdown in your clipboard. | .MD this page converts pages with Readability, optional images, links and metadata. |
| 4 | See your site on five phones at once | Mobile View - Mobile Simulator & Preview | iPhone, Pixel and iPad side by side, before you deploy. | Mobile View previews any page across up to five devices next to the live desktop. |
| 5 | One click blurs every secret on screen | DataBlur: Blur Screen and Hide Sensitive Data | Screen share on, API keys gone, in one keystroke. | DataBlur blurs passwords, emails and prices locally for demos and recordings. |
| 6 | LinkedIn without the feed, instantly | LinkedIn Feed Blocker | Install, refresh, and the doom-scroll column is simply not there. | A 14 KB extension removes the home feed while profiles, jobs and messages keep working. |
| 7 | Long articles become newspaper columns | Columnary | Wide monitor, short lines, scroll sideways like a broadsheet. | Columnary reflows articles into full-height readable columns. |
| 8 | Swap any site's font live | Tinkerfont | Right-click the headline and it is in Inter before you blink. | Tinkerfont inspects and replaces fonts on live sites, with rules saved per hostname. |
| 9 | Drag a box, get the contrast score | Area Contrast Checker - Drag to Scan WCAG and APCA | Drag over the button and the WCAG fail shows in red. | Area Contrast Checker reads real rendered pixels, so gradients and images get scored too. |
| 10 | Screenshot to device mockup in ten seconds | Portfolio Frame - Screenshot Beautifier and Mockup Generator | Plain screenshot in, MacBook frame with shadow out. | Portfolio Frame builds device and browser mockups with annotation and redaction in the browser. |
| 11 | Amazon fake brands vanish on install | Knockoff - Amazon Shopping Filter | SZHLUX and HORUSDY are greyed out before you scroll. | Knockoff checks every Amazon brand against a register of about 5,500 real companies. |
| 12 | Every site goes dark in one click | Dark Reader | Install, toggle, and the white page is gone everywhere. | Dark Reader inverts bright sites with brightness, contrast and sepia controls. |
| 13 | Forty tabs become one list, instantly | OneTab | Click the icon and your tab bar collapses into a single page. | OneTab saves memory by converting open tabs into a restorable list. |
| 14 | Hover any text, know the font | WhatFont | The font name appears under your cursor before you can ask. | WhatFont shows family, size, weight and colour on hover. |
| 15 | Full-page screenshot with zero setup | GoFullPage | Click once and the entire scrolling page is a PNG. | GoFullPage captures full-length screenshots with no permissions beyond the page. |
| 16 | Raw JSON becomes readable on install | JSON Formatter | The API response goes from one line of chaos to a collapsible tree. | JSON Formatter pretty-prints and colour-codes JSON in any tab automatically. |
| 17 | The dislike count is back on YouTube | Return YouTube Dislike | Refresh the video and the number YouTube hid is right there. | Return YouTube Dislike restores an estimated dislike count from archived and crowd data. |
| 18 | Make a quiet video six times louder | Volume Master | Slide to 600 percent and the mumbling podcast is audible. | Volume Master boosts any tab's audio well past the browser's 100 percent cap. |
| 19 | Your new tab gets a purpose | Momentum | Open a tab, see the mountain, type your one focus for today. | Momentum replaces the new tab with a photo, greeting, focus field and to-do list. |
| 20 | What is this site built with, in one click | Wappalyzer | Click the icon and the whole tech stack lists itself. | Wappalyzer identifies CMS, frameworks, analytics and hosting on any page. |
18. Scam and fake extension warnings 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | Fake uBlock Origin clones: 5 red flags | uBlock Origin | The real uBlock Origin has one developer, no company, and never asks you to pay. | Check the publisher name, user count, review age and permission list before installing any ad blocker. |
| 2 | How to spot a fake Honey extension | Honey | A coupon extension that wants to read your passwords is not saving you money. | The real Honey is published by PayPal; copies with similar names and tiny user counts are the pattern to avoid. |
| 3 | Fake Bitwarden: the login page tell | Bitwarden | If the vault login opens in a tab you did not expect, close it. | Real Bitwarden is published by Bitwarden Inc and never emails you a login link from the extension. |
| 4 | The 1Password knock-off checklist | 1Password | The store has one 1Password and it belongs to AgileBits. | Verify publisher, website link on the listing and the millions-of-users count before trusting a password manager. |
| 5 | Authenticator apps that steal your codes | 2FA Authenticator | A real offline authenticator never needs a server, so one that asks for your email is lying. | Apply the no-servers, no-analytics test to any TOTP extension before scanning a single QR code. |
| 6 | Password manager red flags, tested on Bramble | Bramble | Local-first, encrypted and no account is the honest pattern; a clone will quietly add a sign-up. | Run the five-point checklist: open source, local vault, published author, no telemetry, stable update history. |
| 7 | Fake privacy guards for ChatGPT | Redact | An extension that promises to protect your chats but sends them home is the scam. | Redact detects PII on-device with a local model; copies that need a backend or key fail the test. |
| 8 | Fake API key protectors: what to check | VaultBix - Real-Time Data Leak Guard | The extension that reads every prompt you type had better run locally. | VaultBix blocks secrets before submission and runs locally; any clone requesting broad host access plus remote upload is a leak. |
| 9 | Fake Gmail security extensions | Phixo - AI Phishing Protection for Gmail & Outlook | A phishing guard that stores your email bodies is a phishing kit. | Phixo scans in seconds and stores nothing; demand that storage promise from any inbox extension. |
| 10 | Check a sketchy extension's domain in 10 sec | ThreatCheck | Select the developer's domain and twenty-nine threat feeds answer at once. | ThreatCheck looks up IPs, hashes and domains across threat-intel platforms before you install. |
| 11 | Is this open-source extension real? Score it | Repo Reality Check | Ten thousand stars in a week with one contributor is a red flag, not a hit. | Repo Reality Check scores GitHub repos on star anomalies, bus factor, staleness and license warnings. |
| 12 | Fake AI agent extensions: the injection test | Agent Browser Shield | An AI browser agent without prompt-injection protection will obey the page, not you. | Agent Browser Shield masks PII and blocks injection; any agent extension lacking that layer is unsafe. |
| 13 | Beware fake uBlock replacements after MV3 | Ohm | The MV2 purge created a market for ad blocker impostors overnight. | Ohm stores rules locally with no network permission; clones that want network access and all URLs are the impostor pattern. |
| 14 | The extension that spots knock-offs has knock-offs | Knockoff - Amazon Shopping Filter | Ironic, but shopping filters are a favourite disguise for coupon-injecting malware. | Verify a shopping extension's data policy, host permissions and publisher before letting it touch Amazon. |
| 15 | Fake Malwarebytes extensions exist | Malwarebytes Browser Guard | A security brand name on a listing does not mean the brand published it. | Check the publisher field and the website link on the listing match the real vendor domain. |
| 16 | Netcraft vs the fake anti-phishing toolbar | Netcraft | Anti-phishing toolbars are the perfect cover for a phishing toolbar. | Netcraft's listing links to netcraft.com; any look-alike pointing elsewhere is the knock-off. |
| 17 | Scan the extension before you install it | VirusTotal | Drop the CRX hash into VirusTotal and seventy engines vote. | VirusTotal checks a file hash or URL against multiple antivirus engines before you trust it. |
| 18 | Fake Google Translate extensions | Google Translate | The real one is published by Google; the clone with a slightly different icon reads every page you visit. | Translation extensions need page access, so only install the one from the verified publisher. |
| 19 | Fake Grammarly clones read your keystrokes | Grammarly | A grammar checker is a keylogger with good intentions, so pick the real publisher. | Grammarly Inc is the only publisher; check the badge, the user count and the privacy practices tab. |
| 20 | Fake MetaMask: the seed phrase trap | MetaMask | No real wallet extension ever asks for your seed phrase on a web page. | Only install MetaMask from the link on metamask.io and refuse any extension that prompts for recovery words. |
19. Extension changelog: what is new 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | uBlock Origin Lite: what the MV3 rewrite lost | uBlock Origin Lite | Same author, new name, and a filtering engine that works with one hand tied. | uBlock Origin Lite uses Chrome's declarative rules, so it is permission-less by default but less dynamic than the original. |
| 2 | Dark Reader's dynamic mode changed everything | Dark Reader | It stopped inverting your photos the day dynamic mode landed. | Dynamic theme mode analyses page CSS to darken backgrounds while keeping images natural. |
| 3 | Honey added Droplist price alerts | Honey | The coupon finder became a price watcher. | Droplist tracks items you save and notifies you when the price drops. |
| 4 | Grammarly's tone detector update | Grammarly | Your email now gets an emoji verdict before you hit send. | The tone detector reads your draft and labels it confident, friendly or formal with suggestions. |
| 5 | Bitwarden now stores passkeys | Bitwarden | The password manager started managing the thing that replaces passwords. | Bitwarden's extension creates and uses passkeys for sites that support them. |
| 6 | 1Password 8 extension: what moved | 1Password | The extension stopped needing the desktop app and grew a brain of its own. | 1Password 8's browser extension runs standalone with unlock, autofill and save in the popup. |
| 7 | Tampermonkey v5 survived Manifest V3 | Tampermonkey | Userscripts were supposed to die with MV3; they moved into a new permission instead. | Tampermonkey 5 runs on MV3 and requires enabling developer mode for userscripts to execute. |
| 8 | Stylus made the Manifest V3 jump | Stylus | User styles kept working through the MV3 switch, with a few rough edges. | Stylus's MV3 build keeps per-site CSS injection while adapting to the new background model. |
| 9 | SponsorBlock added more than sponsors | SponsorBlock for YouTube - Skip Sponsorships | It started with ad reads and now skips intros, outros and self-promo too. | Segment categories let you choose which crowdsourced sections auto-skip. |
| 10 | Privacy Badger turned off local learning | Privacy Badger | The tracker blocker stopped learning on your machine, on purpose. | Privacy Badger disabled local learning by default to prevent fingerprinting via its own block list, shipping pre-trained data instead. |
| 11 | Ghostery's big redesign, explained | Ghostery | The purple ghost got a new panel and a tracker wheel in one update. | Ghostery's redesigned interface shows blocked trackers by category with simplified controls. |
| 12 | Wappalyzer went paid: what still works free | Wappalyzer | The free tech detector put part of itself behind a subscription. | Per-site detection stays free in the extension; exports, lead lists and API need a paid plan. |
| 13 | TabGroup Vault: backup moved to Drive | TabGroup Vault: Tab Group Backup and Session Buddy Alternative | Your saved tab groups can now survive a dead laptop. | The Pro tier adds Google Drive backup on top of auto-save, sidebar and JSON, Markdown and CSV export. |
| 14 | Readox added OCR and on-device voices | Readox - Read Aloud Text to Speech for Web Pages & PDFs | It reads scanned PDFs now, and the voice no longer leaves your machine. | Readox combines OCR with premium on-device English voices and a playable queue. |
| 15 | Ohm: cosmetic filters after the MV2 purge | Ohm | When Chrome pulled uBlock Origin, this is what filled the hole. | Ohm reintroduces uBlock-style cosmetic rules on MV3 with local storage and no network permission. |
| 16 | NODUS HN Radar landed on Firefox | NODUS HN Radar | The Hacker News rising-post radar stopped being a Chrome-only thing. | NODUS HN Radar is open source and now ships a Firefox build alongside Chrome. |
| 17 | Qursor's free tier: 3 picks a day | Qursor | The UI-to-Markdown tool drew a line at three free picks. | Qursor copies selectors, styles and fonts for AI coding agents, with a capped free tier. |
| 18 | Screen Awesome's auto-zoom update | Screen Awesome - Record, Capture & Annotate | The recorder now glides to every click on its own. | Auto-zoom follows your clicks in MP4 recordings, joined by scrolling screenshots and vector annotations. |
| 19 | Sublern now makes its own subtitles | Sublern - AI Translate Words in Video Subtitles | No subtitle track, no problem, it generates one from the audio. | Sublern can produce subtitles from video or audio before you hover to translate words. |
| 20 | Vibe Reading moved to Chrome's built-in AI | Vibe Reading (offline PDF translation with Gemini Nano) | The translation stopped calling a server when Chrome shipped Gemini Nano. | Vibe Reading uses Chrome's on-device Translator API and Gemini Nano for fully offline PDF translation. |
20. Same extension on Edge, Brave, Firefox 20 ideas
| # | Title | Extension(s) | Hook | Payoff |
|---|---|---|---|---|
| 1 | uBlock Origin on Edge, Brave, Firefox: the truth | uBlock Origin | Firefox still runs the full version; Chrome and Edge push you to Lite. | uBlock Origin remains fully available on Firefox, while Chromium stores limit MV2 and Brave bundles Shields instead. |
| 2 | Dark Reader works everywhere, even Safari | Dark Reader | Four browsers, one dark theme, same settings sync story. | Dark Reader is on the Chrome, Edge and Firefox stores and sold as a Safari app. |
| 3 | Bitwarden on every browser you own | Bitwarden | Chrome, Edge, Brave, Firefox, Safari, Opera, Vivaldi, Tor, all one vault. | Bitwarden publishes native extensions for every major browser store, so one account follows you. |
| 4 | 1Password: Chrome, Edge, Brave, Firefox, Safari | 1Password | The same extension, five stores, and Safari gets it via the Mac app. | 1Password lists on Chrome, Edge, Firefox and Brave stores, with Safari bundled in the desktop app. |
| 5 | Privacy Badger vs Brave Shields: overlap | Privacy Badger | On Brave you are blocking trackers twice, and that is mostly fine. | Privacy Badger ships for Chrome, Edge, Firefox and Opera, but Brave Shields already covers most of its job. |
| 6 | SponsorBlock on Firefox, Edge and Safari | SponsorBlock for YouTube - Skip Sponsorships | The skip button follows you to every browser, and even to a Safari port. | SponsorBlock is on the Chrome, Edge and Firefox stores with a Safari version available separately. |
| 7 | Vimium on Firefox: same keys, one gap | Vimium | Keyboard browsing works in both, but the Firefox port lags on a few commands. | Vimium is available on Chrome and Firefox, with Edge and Brave installing from the Chrome store. |
| 8 | Tampermonkey runs on five browsers | Tampermonkey | Chrome, Edge, Firefox, Safari and Opera all get userscripts, with one MV3 catch. | Tampermonkey is on every major store; Chromium builds need developer mode for scripts to run. |
| 9 | Stylus on Chrome vs Firefox | Stylus | Both stores have it, but Firefox keeps the older background model. | Stylus is on the Chrome and Firefox stores, and Edge and Brave install the Chrome build. |
| 10 | Honey on Edge, Firefox, Safari, Opera | Honey | The coupon pop-up appears in every browser, including Safari on Mac. | Honey lists on Chrome, Edge, Firefox, Safari and Opera stores. |
| 11 | Grammarly: which browser breaks it | Grammarly | Chrome, Edge, Firefox and Safari all get it; Brave Shields sometimes blocks the sign-in. | Grammarly is on four stores, and Brave users may need to lower Shields on grammarly.com for login. |
| 12 | Return YouTube Dislike on Firefox and Edge | Return YouTube Dislike | The dislike count comes back on Firefox too, and even inside Brave. | Return YouTube Dislike is listed on Chrome, Firefox and Edge stores, and Brave runs the Chrome build. |
| 13 | Vibe Reading only works on Chrome itself | Vibe Reading (offline PDF translation with Gemini Nano) | It installs on Edge and Brave, but the AI it needs is Chrome-only. | Vibe Reading depends on Chrome's built-in Gemini Nano and Translator API, which other Chromium browsers do not ship. |
| 14 | NODUS HN Radar: Chrome and Firefox builds | NODUS HN Radar | One of the few indie extensions that bothered with a Firefox port. | NODUS HN Radar is on the Chrome Web Store and Firefox Add-ons, with Edge and Brave using the Chrome listing. |
| 15 | Ohm: why Firefox users do not need it | Ohm | It exists because Chrome lost uBlock; Firefox never did. | Ohm is a Chromium MV3 tool for Chrome, Edge and Brave, while Firefox keeps full uBlock Origin. |
| 16 | Tapfree dictation: Chrome and ChromeOS only | Tapfree: Voice Dictation | Built for Chromebooks first, so Firefox is out of the picture. | Tapfree targets Chrome and ChromeOS; Edge and Brave can install the Chrome build, Firefox cannot. |
| 17 | Skim Recap needs WebGPU, so check your browser | Skim Recap | On-device Gemma is great, until the browser does not expose WebGPU. | Skim Recap runs Gemma via WebGPU, so it needs a Chromium browser with WebGPU enabled. |
| 18 | Open Browser Use on Edge and Brave | Open Browser Use | The agent driver needs a native host, and that host has to find your browser profile. | Open Browser Use is an MV3 Chrome extension with a native host, so it targets Chromium browsers rather than Firefox. |
| 19 | Readox on Edge: same voices, same highlighting | Readox - Read Aloud Text to Speech for Web Pages & PDFs | Edge has its own read-aloud, but this one does PDFs and OCR. | Readox installs on Edge and Brave from the Chrome Web Store, and overlaps with Edge's built-in Read Aloud. |
| 20 | LeoTabs: open source, Chromium only for now | LeoTabs - Tab Manager & Switcher | Portable exports mean your collections move browsers even if the extension does not. | LeoTabs lives on the Chrome Web Store for Chrome, Edge and Brave, and its exports carry sessions elsewhere. |
Derived from the general list at YouTube Shorts niches 2026. Verify each niche with the outlier method on that page before committing.