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Top 23 TypeScript Firefox Projects
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Project mention: What is Automated Functional Testing: Types, Benefits & Tools | dev.to | 2025-08-14
Puppeteer – A Node.js library that automates Chrome and Chromium browsers. Ideal for both functional testing and tasks like web scraping, with support for headless and full-browser modes.
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Sevalla
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Playwright
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
Project mention: Closer to the Metal: Leaving Playwright for CDP | news.ycombinator.com | 2025-08-20Also recently found it unnecessarily difficult to do profiling of page workers using Playwright's CDPSession wrapper ([and they don't seem to have any plans to improve it](https://github.com/microsoft/playwright/issues/22992#issueco...)), whereas it was pretty painless in Puppeteer.
So, definitely more useful if you care about more than just your main thread.
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Project mention: Las Vegas staff say MrBeast should be 'blacklisted', cite OSHA | news.ycombinator.com | 2024-09-26
The extensions displays an estimate based on how many of the extension's users disliked the video. Youtube doesn't expose an API for getting the exact dislike count, except to the creator of the video.
https://github.com/Anarios/return-youtube-dislike/blob/main/...
https://support.google.com/youtube/thread/134791097/update-t...
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metamask-extension
:globe_with_meridians: :electric_plug: The MetaMask browser extension enables browsing Ethereum blockchain enabled websites
Instalação: Vá para o site oficial da MetaMask (https://metamask.io/) e instale a extensão para o seu navegador (Chrome, Firefox, Brave, Edge, etc.).
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SponsorBlock (https://sponsor.ajay.app/)
It works amazingly well provided a video's been out for at least a half hour or so. It also has the option to skip the "like and subscribe" parts too.
I also tried the https://dearrow.ajay.app/ extension to replace clickbait titles, but decided I'd rather know when a channel/video is too clickbait-y so I can block/unsubscribe.
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Project mention: Bitwarden introduces mandatory 2FA for new devices | news.ycombinator.com | 2025-01-28
The new extension is a lagfest. There's a noticeable 2s latency to every action now. I don't know how something like this makes it to GA. Long ticket: https://github.com/bitwarden/clients/issues/12286
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browserless
Deploy headless browsers in Docker. Run on our cloud or bring your own. Free for non-commercial uses.
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InfluxDB
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Cookie-AutoDelete
Firefox and Chrome WebExtension that deletes cookies and other browsing site data as soon as the tab closes, domain changes, browser restarts, or a combination of those events.
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If you want them to fix it:
1) Generate a profile performance with https://profiler.firefox.com/
2) Submit the link with your results to https://bugzilla.mozilla.org/
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news-feed-eradicator
A browser extension that deletes your news feed and replaces it with a nice quote
- Use News Feed Eradicator (https://github.com/jordwest/news-feed-eradicator/) to remove feeds from websites which have some utility for me (e.g. LinkedIn) but can be a time sink
Honestly, these steps have worked quite well for me thus far. I have managed to get back into reading (both fiction, non-fiction as well as academic textbooks), freed up time to spend with family and friends, and also gotten into watching TV shows - something I had not really done in the last 2-3 years due to being hooked on short form media
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HeaderEditor
Manage browser's requests, include modify the request headers, response headers, response body, redirect requests, cancel requests
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tab-stash
Firefox extension to save and restore tabs as bookmarks. Clear your tabs, clear your mind.
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linguist
Translate web pages, highlighted text, Netflix subtitles, private messages, speak the translated text, and save important translations to your personal dictionary to learn words even offline (by translate-tools)
As maintainer of https://linguister.io/, should I start work on polyfill for that API?
If this API will be implemented in next few years, there will be browsers who hold up the world in progress.
Linguist have enough many users, so we could expose this API for client side code, and users with browsers where Translation API is not implemented yet, could install Linguist and sites who uses Translation API would works fine. Translation API calls would proxy by Linguist and preferred translator module would be used.
Any thoughts about it?
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript Firefox discussion
TypeScript Firefox related posts
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Construindo DApps com Web3.js
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Ask HN: What project do you donate to?
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We're building a dystopia just to make people click on ads [video]
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Onboard Ethereum: A Beginner’s Guide to MetaMask, Testnets, and Your First Wallet
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How to Chat with Gemini 2.5 Pro from VSCode via AI Studio (Free and Unlimited)
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The guide to reduce screen time
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Exploring Drip Tokens: A Comprehensive Guide to DeFi, Wallets, and Emerging Innovations
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A note from our sponsor - InfluxDB
www.influxdata.com | 1 Sep 2025
Index
What are some of the best open-source Firefox projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | puppeteer | 92,187 |
| 2 | Playwright | 76,590 |
| 3 | return-youtube-dislike | 13,250 |
| 4 | metamask-extension | 12,721 |
| 5 | SponsorBlock | 11,911 |
| 6 | clients | 11,123 |
| 7 | browserless | 11,084 |
| 8 | tridactyl | 5,819 |
| 9 | extension.js | 4,403 |
| 10 | AdguardBrowserExtension | 3,691 |
| 11 | fx_cast | 1,964 |
| 12 | Cookie-AutoDelete | 1,901 |
| 13 | Bonjourr | 1,430 |
| 14 | profiler | 1,379 |
| 15 | news-feed-eradicator | 1,298 |
| 16 | unclutter | 1,291 |
| 17 | browser | 1,088 |
| 18 | HeaderEditor | 1,090 |
| 19 | downthemall | 1,033 |
| 20 | tab-stash | 935 |
| 21 | temporary-containers | 873 |
| 22 | linguist | 853 |
| 23 | webextension-toolbox | 766 |
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