HTML Firefox

Open-source HTML projects categorized as Firefox

Top 21 HTML Firefox Projects

  1. wpt

    Test suites for Web platform specs — including WHATWG, W3C, and others

    Project mention: Ask HN: What are you working on? (September 2026) | news.ycombinator.com | 2026-09-13

    I'm building a Python Browser and need you help running agents on conformance tests https://github.com/byteface/chromonic/

    cd to tests/layout..

    git clone --depth=1 https://github.com/web-platform-tests/wpt.git

    tell it to run the tests and fix any issues with layout and append any issues with domonic into the PLAN.md

    I'm targetting the CSS2 folder atm.. so you can tell it to switch to any folder within there for now.

    Thanks,

  2. AppSignal

    AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.

    AppSignal logo
  3. bedrock

    Making mozilla.org awesome, one pebble at a time (by mozilla)

    Project mention: Firefox is now the last major browser that still supports uBlock Origin | news.ycombinator.com | 2026-08-14

    Firefox also collects and sells data to no one really knows who.

    https://github.com/mozilla/bedrock/commit/d459addab846d8144b...

    https://blog.mozilla.org/en/firefox/update-on-terms-of-use/

  4. ffprofile

    A tool to create firefox profiles with personalized defaults.

  5. i2pdbrowser

    i2pd browser bundle

  6. censortracker

    Censor Tracker is a censorship circumvention extension for Google Chrome and Mozilla Firefox.

  7. offline-qr-code

    📱 Browser add-on allowing you to quickly generate a QR code offline with the URL of the open tab or other text!

  8. nim-webui

    Use any web browser as GUI, with Nim in the backend and HTML5 in the frontend.

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. firefox-user.js-tool

    Interactive view, compare, and more for Firefox user.js (eg arkenfox/user.js) + about:config functions

  11. HackThisPage

    A browser extension with which you can 'Hack' any webpage ;) (by virejdasani)

  12. plunger

    A Youtube adblock-block-un-blocker browser extension

  13. startpage

    simple custom start page with inline-css and nerd fonts glyphs (by junguler)

  14. startpage

    My startpages setup (by mahmoudk1000)

  15. telemark

    🔖 Bookmark your tabs in Telegram!

  16. bookmarks

    A powerful, lightweight web application for organizing, storing, and managing your bookmarks with an intuitive user interface. Supported by Claude Code. (by skorotkiewicz)

  17. i2p.plugins.firefox

    I2P Focused Browser Profile Manager written in Java.

  18. memex

    Your personal federated link collection, displayed as an interactive mind map you can keep private or share with friends instances. android app and browser extentions. Easily deploy with docker. Android app & browser Extention included (by hasmeni)

    Project mention: Memex – mindmap alternative to linkding, kerakeep and readeck | news.ycombinator.com | 2026-07-15
  19. whatsend

    A browser add-on that allows users to connect to non-contacts via Whatsapp

  20. I2P-Easy-Install-the-Movie

    Short video on how to install the I2P easy-install bundle

  21. ExtStoreStats

    Get the stats of your browser extension on different marketplace

  22. Tassel

    Template project for adding bookmarks to a web browser via a WebExtension. Fork it, change the json file, get it signed and self-distribute.

  23. browserSearchShortcuts

    Adds Chrome, Firefox and IE address bar (omnibox) keyword search shortcuts

  24. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
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).

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    SaaSHub helps you find the best software and product alternatives Learn more →

Index

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

# Project Stars
1 wpt 6,221
2 bedrock 1,337
3 ffprofile 845
4 i2pdbrowser 804
5 censortracker 754
6 offline-qr-code 484
7 nim-webui 164
8 firefox-user.js-tool 42
9 HackThisPage 27
10 plunger 24
11 startpage 20
12 startpage 17
13 telemark 11
14 bookmarks 10
15 i2p.plugins.firefox 9
16 memex 6
17 whatsend 6
18 I2P-Easy-Install-the-Movie 3
19 ExtStoreStats 1
20 Tassel 1
21 browserSearchShortcuts 0

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