Firefox

Firefox is a free and open source web browser developed by Mozilla Foundation. First released in 2002 under the name Phoenix. It’s available for most operating systems including Windows, macOS, Linux and most phones and tablets.

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puppeteer /puppeteer

Star92.9k

JavaScript API for Chrome and Firefox

testing firefox chrome automation web chromium developer-tools node-module headless-chrome

UpdatedNov 28, 2025
TypeScript

microsoft /playwright

Star79.7k

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

electron javascript testing firefox chrome automation web test chromium test-automation testing-tools webkit end-to-end-testing e2e-testing playwright

UpdatedNov 28, 2025
TypeScript

gorhill /uBlock

Star60k

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

javascript firefox chromium ublock-origin browser-extension blocker ublock

UpdatedNov 28, 2025
JavaScript

FiloSottile /mkcert

Sponsor

Star57.3k

A simple zero-config tool to make locally trusted development certificates with any names you'd like.

windows macos linux tls firefox ios chrome https certificates localhost local-development root-ca

UpdatedAug 13, 2024
Go

zen-browser /desktop

Sponsor

Star38.1k

Welcome to a calmer internet

firefox firefox-browser firefox-based zen-browser

UpdatedNov 28, 2025
C++

ArchiveBox /ArchiveBox

Sponsor

Star25.8k

🗃 Open source self-hosted web archiving. Takes URLs/browser history/bookmarks/Pocket/Pinboard/etc., saves HTML, JS, PDFs, media, and more...

python rss backups firefox pinboard youtube-dl chromium self-hosted wget pocket browser-bookmarks warc web-archiving wayback-machine digipres singlefile headless-browser bookmark-archiver internet-archiving archivebox

UpdatedNov 15, 2025
Python

ovity /octotree

Star23.1k

GitHub on steroids

github firefox chrome opera safari edge code-review browser-extension code-files pull-request-review

UpdatedJun 6, 2024
JavaScript

gildas-lormeau /SingleFile

Star19.6k

Web Extension for saving a faithful copy of a complete web page in a single HTML file

javascript chrome-extension cli firefox screenshot chrome osint browser firefox-addon annotations snapshot selenium archive archiver self-extracting-zip web-clipper puppeteer auto-save offline-reading self-extracting

UpdatedNov 29, 2025
JavaScript

xifangczy /cat-catch

Star16.9k

猫抓浏览器资源嗅探扩展 / cat-catch Browser Resource Sniffing Extension

javascript chrome-extension jquery firefox chrome video-downloader firefox-extension m3u8-downloader

UpdatedNov 29, 2025
JavaScript

microsoft /playwright-python

Star14k

Python version of the Playwright testing and automation library.

firefox chromium webkit playwright

UpdatedNov 24, 2025
Python

Anarios /return-youtube-dislike

Star13.4k

Chrome extension to return youtube dislikes

chrome-extension firefox youtube firefox-addon firefox-extension dislike dislikes dislikes-count dislike-button

UpdatedNov 20, 2025
JavaScript

moonD4rk /HackBrowserData

Star13.2k

Extract and decrypt browser data, supporting multiple data types, runnable on various operating systems (macOS, Windows, Linux).

windows macos golang firefox chrome browser hacking edge browser-extension pentest-tool

UpdatedNov 27, 2025
Go

MetaMask /metamask-extension

Star13k

🌐 🔌 The MetaMask browser extension enables browsing Ethereum blockchain enabled websites

firefox chrome extension opera ethereum dapp edge brave dapp-developers

UpdatedNov 29, 2025
TypeScript

crimx /ext-saladict

Star12.9k

🥗 All-in-one professional pop-up dictionary and page translator which supports multiple search modes, page translations, new word notebook and PDF selection searching.

react chrome-extension firefox chrome typescript rxjs extension dictionaries firefox-addon webextension firefox-extension saladict