JavaScript Firefox

Open-source JavaScript projects categorized as Firefox

Top 23 JavaScript Firefox Projects

  • uBlock

    uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.

    Project mention: What do you guys think of the Startpage privacy extension? | | 2022-11-26
  • bypass-paywalls-chrome

    Bypass Paywalls web browser extension for Chrome and Firefox.

    Project mention: Best ways to bypass news paywalls on android? There is a news site I've been trying to bypass, the extension below is the only tool that works, but it only works on desktop PC. | | 2022-11-26
  • Sonar

    Write Clean JavaScript Code. Always.. Sonar helps you commit clean code every time. With over 300 unique rules to find JavaScript bugs, code smells & vulnerabilities, Sonar finds the issues while you focus on the work.

  • octotree

    GitHub on steroids

    Project mention: Extensões para Navegador - Turbinando sua experiência no GitHub | | 2022-04-20
  • return-youtube-dislike

    Chrome extension to return youtube dislikes

    Project mention: It would be nice if google tested the responsiveness of YT. I can't believe I pay for YT premium. | | 2022-11-06

    ReVanced also gives you background play and picture-in-picture on mobile. It also gives you SponsorBlock and Return YouTube Dislike, on mobile, on the native YouTube app, without having to use a browser.

  • SingleFile

    Web Extension and CLI tool for saving a faithful copy of an entire web page in a single HTML file

    Project mention: Lost something? Search through 91.7 million files from the 80s, 90s, and 2000s | | 2022-10-19

    ArchiveBox is incredible for this. It can archive web pages in many different ways, my favorite ones being SingleFile and uploading to

  • metamask-extension

    :globe_with_meridians: :electric_plug: The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

    Project mention: Safest Defi Wallet | | 2022-11-26

    Metamask is still the safest. Just switch the RPC from Alchemy to one that doesn't collect your data like Ankr.

  • user.js

    Firefox privacy, security and anti-tracking: a comprehensive user.js template for configuration and hardening

    Project mention: Can we get one of the mods/PG folks to tell us if the containers extension is a must if using Firefox in its current state? | | 2022-11-25

    Recommend reading for further discussion and a recommendation.

  • Scout APM

    Truly a developer’s best friend. Scout APM is great for developers who want to find and fix performance issues in their applications. With Scout, we'll take care of the bugs so you can focus on building great things 🚀.

  • Surfingkeys

    Map your keys for web surfing, expand your browser with javascript and keyboard.

    Project mention: My RSI recovery setup | | 2022-09-24

    I can highly recommend this extension. It looks similar to the one you use.

  • melonJS

    a fresh & lightweight javascript game engine

    Project mention: How to make a game under 10 MB and what engine to use? | | 2022-08-02

    Checkout LittleJS, MelonJS and my main recommendation, Phaser.

  • floccus

    :cloud: Sync your bookmarks privately across browsers and devices

    Project mention: Bookmarks backup in mull browser | | 2022-10-13
  • ClearURLs-Addon

    ClearURLs is an add-on based on the new WebExtensions technology and will automatically remove tracking elements from URLs to help protect your privacy.

    Project mention: China accused of illegal police stations in Netherlands | | 2022-10-26

    You can use the ClearURLs addon. I've been using it for years. It's not perfect, but it automatically removes a lot of tracking stuff. Everyone should be using it actually.

  • slimerjs

    A scriptable browser like PhantomJS, based on Firefox

  • treestyletab

    Tree Style Tab, Show tabs like a tree.

    Project mention: Tree Style Tab, Show tabs like a tree | | 2022-11-23
  • user.js

    user.js -- Firefox configuration hardening (by pyllyukko)

    Project mention: Tor Browser without Tor in 2022 | | 2022-11-21
  • multi-account-containers

    Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.

    Project mention: Firefox container showing container selection screen like this | | 2022-11-20
  • AdguardBrowserExtension

    AdGuard browser extension

    Project mention: Stopping YouTube Franklin Graham ads | | 2022-11-11

    If you’re on a phone, you can use AdGuard - been using this app for years. Blocks ads and has an extension for Safari if you’re on iOS.

  • Traduzir-paginas-web

    Translate your page in real time using Google or Yandex

    Project mention: I Had to leave Brave. | | 2022-11-22
  • playwright-dotnet

    .NET version of the Playwright testing and automation library.

    Project mention: How to create a bot to do stuff on the internet I'm too lazy to do. | | 2022-02-14

    I believe playwright can do the job,

  • Librefox

    Librefox: Firefox with privacy enhancements

    Project mention: Each Firefox download has a unique identifier | | 2022-03-17
  • privacy-redirect

    A simple web extension that redirects Twitter, YouTube, Instagram & Google Maps requests to privacy friendly alternatives.

    Project mention: Privacy tools for the information age 🔐 | | 2022-11-23

    Privacy Redirect

  • better-onetab

    :bookmark_tabs: A better OneTab for Chrome :memo: Temporarily removed from firefox :construction: V2 is WIP

    Project mention: Serendipity | | 2022-05-31

    It’s so much better with better-onetab, where it even has a search bar to easily search for old tabs based on URL and page header. Highly recommend them both, and better-onetab is even open source if that matters to you!

  • SingleFileZ

    Web Extension for Firefox/MS Edge and CLI tool to save a faithful copy of an entire web page in a self-extracting HTML/ZIP polyglot file

    Project mention: Need automatic way to download individual tweets that are in my browser bookmarks | | 2022-11-17

    Not sure about chrome but singlefilez on firefox can be set to auto save pages from a bookmark folder you specify.

  • ShadowFox

    A universal dark theme for Firefox

    Project mention: How can you force a VM to go down immediately when it's doing this error ? | | 2022-09-11

    In addition to dark reader which works great with +95% of the webpages I’ve encounter editing , you can change the various “protected” pages in Firefox by using the shadow fox theme.

  • Zigi

    Workflow assistant built for devs & their teams. Automate the mundane part of your day, with live actionable messages for your GitHub & Jira tasks.

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). The latest post mention was on 2022-11-26.

JavaScript Firefox related posts


What are some of the best open-source Firefox projects in JavaScript? This list will help you:

Project Stars
1 uBlock 33,225
2 bypass-paywalls-chrome 30,659
3 octotree 22,260
4 return-youtube-dislike 10,415
5 SingleFile 9,600
6 metamask-extension 9,012
7 user.js 6,596
8 Surfingkeys 4,326
9 melonJS 4,270
10 floccus 3,514
11 ClearURLs-Addon 3,317
12 slimerjs 2,981
13 treestyletab 2,796
14 user.js 2,492
15 multi-account-containers 2,194
16 AdguardBrowserExtension 1,889
17 Traduzir-paginas-web 1,715
18 playwright-dotnet 1,708
19 Librefox 1,639
20 privacy-redirect 1,525
21 better-onetab 1,474
22 SingleFileZ 1,392
23 ShadowFox 1,325
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