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.
AdGuard browser extension
Translate your page in real time using Google or Yandex
Beautiful, responsive, highly customizable popup boxes
Cat scratch chrome resource sniffing extension
Captcha solver extension for humans
DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome
Allows adding extensions from chrome web store on ungoogled-chromium
Web Extension for saving a copy of complete web page in a single file
Scanner detecting the use of JavaScript libraries
Skip YouTube video sponsors (browser extension)
A chrome extension for automating your browser by connecting blocks
Stylus - Userstyles Manager
jQuery Validation Plugin library sources
Automatic TLS certificate manager for Kubernetes
Privacy Badger automatically learns to block invisible trackers
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
Consolidate and extend hosts files from several well-curated sources
In-browser Markdown editor
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
A web privacy measurement framework
Chromecast Web Sender SDK implementation for Firefox
Light and responsive lightbox script with focus on performance
A Chrome plugin: Replace Google CDN with domestic
The plugin-driven server agent for collecting and reporting metrics