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

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

GitHub on steroids

Firefox for iOS

uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox, and Safari.

Bypass Paywalls web browser extension for Chrome and Firefox.

🗃 The open source self-hosted web archive. Takes browser history/bookmarks/Pocket/Pinboard/etc., saves HTML, JS, PDFs, media, and more...

Feature-rich professional inline translator.

The faster and smarter Debugger for Firefox DevTools 🔥🦊🛠

WebDriver for Firefox

简悦 ( SimpRead ) - 让你瞬间进入沉浸式阅读的扩展

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

Chrome Debugging Protocol interface for Node.js

a fresh & lightweight javascript game engine

Bypass Paywalls for Firefox

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

让浏览任意语言的网站变得无比轻松的浏览器扩展程序。

A scriptable browser like PhantomJS, based on Firefox

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

Clockwork - php dev tools in your browser - server-side component

An ongoing comprehensive user.js template for configuring and hardening Firefox privacy, security and anti-fingerprinting

Web Extension for Firefox/Chrome/Edge and CLI tool to save a faithful copy of an entire web page in a single HTML file

user.js -- Firefox configuration hardening

Selenium-python but lighter: Helium is the best Python library for web automation.

Tree Style Tab, Show tabs like a tree.

The browser extension vault (Chrome, Firefox, Opera, Edge, Safari, & more).

Accelerates your web browsing with Vim power!!

☁️ Sync your bookmarks across browsers via Nextcloud, WebDAV or a local file (and thus any file sync solution)

Librefox: Firefox with privacy enhancements

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.