Webextension GitHub Repositories (2026) · Open Source Tools

Safari-friendly Bilibili CDN accelerator for smoother overseas playback.

:cloud: Sync your bookmarks privately across browsers and devices

Yet another awesome browser extension for switching search engines, search everything (selection text / image / link / find in page) on any engine with a simple right click or a variety of menus and shortcuts. Build with React & Material-UI. (WIP).

The cross-browser extension framework.

Blocks specific sites from appearing in Google search results

Finds larger/original versions of images and videos

A browser extension that redirects popular sites to alternative privacy friendly frontends

🧰 The enhancement suite for Tumblr's new web interface

Read one post and leave. Chrome and Firefox extension that opens X and Bluesky post links in a popup, not the full site. No account, no cookies sent to either.

Webextension tool for Odoo

An awesome browser extension that reads aloud webpage content with one click

A command line tool to help build, run, and test web extensions

Scrobble music all around the web!

KeePassXC Browser Extension

Fully portable and lightweight ZIM reader written entirely in Javascript. Runs both as a Browser Extension and as a Progressive Web App.

A video downloader for various adult websites

WebExtension for keyboard-accessible tab management

Firefox/Chrome Extension to provide bullet chatting (Danmaku) on YouTube Live, like niconico or bilibili.

Private AI summarizer for anything you read. Inspired by Mozilla's Orbit.

Filter your Tumblr dashboard