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.
Beautiful, responsive, highly customizable popup boxes
Captcha solver extension for humans
The last carousel you'll ever need
Translate your page in real time using Google or Yandex
A datepicker for twitter bootstrap
A portable modern multi-threading download manager for all platforms
Vlc web plugin based on FireBreath
Cat scratch chrome resource sniffing extension
Allows adding extensions from chrome web store on ungoogled-chromium
AdGuard browser extension
Replacement for JavaScript's alerts that makes popup messages easy
Japanese pop-up dictionary extension for Chrome and Firefox
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
jQuery Validation Plugin library sources
Privacy Badger automatically learns to block invisible trackers
Web Extension for Firefox/Chrome/MS Edge and CLI tool
In-browser Markdown editor
Extension that allows you to intercept and edit HTTP/HTTPS requests
The plugin-driven server agent for collecting and reporting metrics
Consolidate and extend hosts files from several well-curated sources
The Bitwarden browser extension vault
jQuery grid plugin
A chrome extension for automating your browser by connecting blocks
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge