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.
Captcha solver extension for humans
Beautiful, responsive, highly customizable popup boxes
The Bitwarden browser extension vault
AdGuard browser extension
DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome
Stylus - Userstyles Manager
Chromecast Web Sender SDK implementation for Firefox
The Universal Plug-in System. Extend anything with WebAssembly
Translate your page in real time using Google or Yandex
jQuery Validation Plugin library sources
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
A tool to install, manage and use Progressive Web Apps (PWAs)
Firefox privacy, security and anti-tracking: a comprehensive user.js
Gradle plugin for building plugins for IntelliJ-based IDEs
Browser extension for reverse image search, available for Chrome
Allows adding extensions from chrome web store on ungoogled-chromium
Cat scratch chrome resource sniffing extension
A chrome extension for automating your browser by connecting blocks
Skip YouTube video sponsors (browser extension)
A vanilla JS customizable select box/text input plugin
In-browser Markdown editor
A datepicker for twitter bootstrap
A simple & straight-to-the-point PHP profiling extension
Extension that allows you to intercept and edit HTTP/HTTPS requests