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
Captcha solver extension for humans
Extension that allows you to intercept and edit HTTP/HTTPS requests
AdGuard browser extension
Core server and tier 1 (built-in) plugins
Allows adding extensions from chrome web store on ungoogled-chromium
The Bitwarden browser extension vault
DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome
A chrome extension for automating your browser by connecting blocks
Chromecast Web Sender SDK implementation for Firefox
uBlock: a fast, lightweight, and lean blocker for Chrome, Firefox
Skip YouTube video sponsors (browser extension)
Translate your page in real time using Google or Yandex
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge
A framework for browser automation and testing with Selenium
Debloated fork of the extension "I don't care about cookies"
The plugin-driven server agent for collecting and reporting metrics
The jQuery plugin that brings select elements into the 21st century
Browser extension that simplifies finding and subscribing RSS and RSSH
Scanner detecting the use of JavaScript libraries
In-browser Markdown editor
Vlc web plugin based on FireBreath
Firefox and Chrome WebExtension that deletes cookies