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Top 20 HTML Firefox Projects
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Project mention: Introducing Saturon: A Grammar-Aware Runtime for CSS Color Level 5 | dev.to | 2025-11-11
Saturon passes the full Web Platform Tests for CSS Color validation, with only a few exceptions (sign() with font-relative units).
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"A gap between machine-discoverable and human-discoverable bugs favors the attacker, who can concentrate many months of costly human effort to find a single bug. Closing this gap erodes the attacker's long-term advantage by making all discoveries cheap." — Mozilla, on the shift in attacker/defender economics.
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censortracker
Censor Tracker is a censorship circumvention extension for Google Chrome and Mozilla Firefox.
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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!
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firefox-user.js-tool
Interactive view, compare, and more for Firefox user.js (eg arkenfox/user.js) + about:config functions
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bookmarks
A powerful, lightweight web application for organizing, storing, and managing your bookmarks with an intuitive user interface. Supported by Claude Code. (by skorotkiewicz)
My bookmark manager lightweight for organizing, storing, and managing your bookmarks with an intuitive user interface.
https://github.com/skorotkiewicz/bookmarks
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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.
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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).
HTML Firefox discussion
HTML Firefox related posts
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Anthropic Mythos Broke Firefox: 271 zero-day vulnerabilities
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JPEG XL Demo Page
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Unveiling the Mozilla Public License 2.0: A Deep Dive into Open Source Licensing and Fair Code Principles
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Simple Browser Tracking
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Markdown for dummies
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Ask HN: With trust in Firefox gone, is Chrome-ish the only option?
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Mozilla's new Terms of Use causes confusion among Firefox users
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A note from our sponsor - SaaSHub
www.saashub.com | 13 Jun 2026
Index
What are some of the best open-source Firefox projects in HTML? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | wpt | 5,931 |
| 2 | bedrock | 1,323 |
| 3 | ffprofile | 847 |
| 4 | i2pdbrowser | 792 |
| 5 | censortracker | 755 |
| 6 | offline-qr-code | 480 |
| 7 | nim-webui | 160 |
| 8 | firefox-user.js-tool | 42 |
| 9 | HackThisPage | 28 |
| 10 | plunger | 25 |
| 11 | startpage | 19 |
| 12 | startpage | 17 |
| 13 | telemark | 11 |
| 14 | i2p.plugins.firefox | 9 |
| 15 | bookmarks | 9 |
| 16 | whatsend | 6 |
| 17 | I2P-Easy-Install-the-Movie | 3 |
| 18 | Tassel | 1 |
| 19 | ExtStoreStats | 1 |
| 20 | browserSearchShortcuts | 0 |
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