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.
Captcha solver extension for humans
Beautiful, responsive, highly customizable popup boxes
jQuery Validation Plugin library sources
Translate your page in real time using Google or Yandex
A datepicker for twitter bootstrap
Vlc web plugin based on FireBreath
Core server and tier 1 (built-in) plugins
The last carousel you'll ever need
A portable modern multi-threading download manager for all platforms
AdGuard browser extension
A chrome extension for automating your browser by connecting blocks
Cat scratch chrome resource sniffing extension
DuckDuckGo Privacy Essentials browser extension for Firefox, Chrome
Allows adding extensions from chrome web store on ungoogled-chromium
The Bitwarden browser extension vault
In-browser Markdown editor
Japanese pop-up dictionary extension for Chrome and Firefox
Consolidate and extend hosts files from several well-curated sources
Google Unlocked browser extension uncensor google search results
Light and responsive lightbox script with focus on performance
The plugin-driven server agent for collecting and reporting metrics
Web Plugin powered by Firebreath/Qt Qml/Vlc
Ghostery Browser Extension for Firefox, Chrome, Opera and Edge