Browse free open source Browser Extensions and Plugins and projects for Mac and Linux 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
Allows adding extensions from chrome web store on ungoogled-chromium
A chrome extension for automating your browser by connecting blocks
Chromecast Web Sender SDK implementation for Firefox
The plugin-driven server agent for collecting and reporting metrics
Firefox privacy, security and anti-tracking: a comprehensive user.js
jQuery Validation Plugin library sources
Light and responsive lightbox script with focus on performance
Consolidate and extend hosts files from several well-curated sources
One for all free music in china (chrome extension)
A javascript scrollbar plugin which hides native scrollbars
The last carousel you'll ever need
A simple, lightweight JavaScript API for handling browser cookies
A web extension for Pixiv
A browser extension to improve TweetDeck with a lot of features
A vanilla JS customizable select box/text input plugin
Firefox and Chrome WebExtension that deletes cookies
A node.js plugin to integrate nw.js/electron games with steamworks
An extension of CSS, adding nested rules, variables, mixins and more
Typora plugin. Feature enhancement tool
The jQuery plugin that brings select elements into the 21st century
A GNOME theme for Firefox
A small program that forwards searches from Cortana
GitHub action to set up PHP with extensions, php.ini configuration
Replacement for JavaScript's alerts that makes popup messages easy