Browse free open source Browser Extensions and Plugins and projects for Windows 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
A chrome extension for automating your browser by connecting blocks
Core server and tier 1 (built-in) plugins
Captcha solver extension for humans
Extension that allows you to intercept and edit HTTP/HTTPS requests
AdGuard browser extension
Chromecast Web Sender SDK implementation for Firefox
Translate your page in real time using Google or Yandex
The Bitwarden browser extension vault
A datepicker for twitter bootstrap
Allows adding extensions from chrome web store on ungoogled-chromium
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
jQuery Validation Plugin library sources
DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome
Scanner detecting the use of JavaScript libraries
The plugin-driven server agent for collecting and reporting metrics
In-browser Markdown editor
Vlc web plugin based on FireBreath
A portable modern multi-threading download manager for all platforms
Skip YouTube video sponsors (browser extension)
Google Unlocked browser extension uncensor google search results
jQuery grid plugin
Automated auditing, performance metrics, & best practices for the web