Browse free open source Browser Extensions and Plugins and projects for Mac below. Use the toggles on the left to filter open source Browser Extensions and Plugins by OS, license, language, programming language, and project status.
jQuery Validation Plugin library sources
AdGuard browser extension
Translate your page in real time using Google or Yandex
Beautiful, responsive, highly customizable popup boxes
Captcha solver extension for humans
Allows adding extensions from chrome web store on ungoogled-chromium
DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome
Extension that allows you to intercept and edit HTTP/HTTPS requests
Stylus - Userstyles Manager
A chrome extension for automating your browser by connecting blocks
A node.js plugin to integrate nw.js/electron games with steamworks
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
Chromecast Web Sender SDK implementation for Firefox
Firefox privacy, security and anti-tracking: a comprehensive user.js
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
A datepicker for twitter bootstrap
Cat scratch chrome resource sniffing extension
Skip YouTube video sponsors (browser extension)
The Bitwarden browser extension vault
In-browser Markdown editor
Typora plugin. Feature enhancement tool
Vlc web plugin based on FireBreath
Custom CSS tweaks for Firefox
One for all free music in china (chrome extension)