Included when the download list contains a browser extension package. Projects already published on an extension store usually attach none, so this page holds the self-distributed part.
Extension
88 software
88 open-source projects ship Extension installers, with 329,622 stars in total, 34 of which released a new version in the last 7 days.
Download & install notes
- A .crx is a Chrome / Edge package. Chrome blocks installs from outside the store: enable Developer mode on the Extensions page and drag the file in, or unpack it and use "Load unpacked".
- An .xpi targets Firefox — install it from Add-ons Manager → Install Add-on From File. Unsigned extensions only load in Developer Edition / Nightly.
- Extensions receive all their permissions at install time. Check the repository README for which sites it can read and modify before installing.
Category
Languages
uBlock
gorhill/uBlock
An efficient, low-resource content blocker for Chromium and Firefox browsers, blocking ads, trackers, malware, and more by default.
oh-my-pi
can1357/oh-my-pi
A terminal AI coding agent with hash-anchored edits, LSP, Python, browser, subagents, and more.
darkreader
darkreader/darkreader
An open-source browser extension that analyzes web pages and generates dark mode to reduce eyestrain while browsing, supporting Chrome, Firefox, and Edge with extensive customization.
cat-catch
xifangczy/cat-catch
A browser resource sniffing extension that filters and lists resources on the current page, supporting Chrome, Edge, and Firefox.
automa
AutomaApp/automa
Automa is a browser extension for Chrome and Firefox that automates tasks by connecting blocks — form filling, scheduled workflows, screenshots, and web scraping, no coding required.
ruffle
ruffle-rs/ruffle
An Adobe Flash Player emulator written in Rust, targeting both desktop and the web via WebAssembly, designed to keep Flash content playable after Flash's discontinuation.
harper
Automattic/harper
A completely offline, open-source grammar checker that runs entirely on-device with no cloud round-trips, no telemetry, and sub-10ms suggestions.
notebook
jupyter/notebook
Jupyter Notebook is a web-based interactive computing environment for writing and running code, displaying results, and mixing documentation in the browser, ideal for data analysis, research, and teaching.
kiss-translator
fishjar/kiss-translator
A minimalist, open-source bilingual translation browser extension and userscript supporting web pages, text selection, input boxes, YouTube subtitles, and more, compatible with multiple translation services.
read-frog
mengxi-ream/read-frog
An open-source AI-powered browser extension for language learning, supporting immersive translation, article analysis, multiple AI models, and a personalized learning experience.
FluentRead
FluentRead/FluentRead
A fully open-source browser translation extension and open-source alternative to Immersive Translate, supporting bilingual translation, text selection, AI reading assistance, image and document translation, and bilingual video subtitles.
floccus
floccusaddon/floccus
A cross-browser bookmark sync tool that syncs bookmarks privately via Nextcloud, Google Drive, Dropbox, Git, or WebDAV, with a focus on privacy.
GeoLibre
opengeos/GeoLibre
A lightweight, cloud-native GIS platform for visualizing, exploring, and analyzing geospatial data in the browser, desktop, mobile, and Jupyter notebooks.
misterdownloadmanager
anefzaoui/misterdownloadmanager
misterdownloadmanager is a Rust-written cross-platform open-source download manager for Windows, macOS, and Linux, with up to 16 parallel connections, resume, scheduler, and a browser extension for video sniffing.
scriptcat
scriptscat/scriptcat
A powerful userscript manager browser extension fully compatible with Tampermonkey scripts, featuring an innovative background script execution framework, rich API extensions, cloud sync, scheduled scripts, and a security sandbox.
all-api-hub
qixing-jk/all-api-hub
A one-stop AI relay account management browser extension offering balance/usage dashboard, auto check-in, one-click key usage, price comparison, availability testing, and advanced channel management.
BewlyCat
keleus/BewlyCat
A Bilibili browser extension based on BewlyBewly, retaining the original UI beautification features while adding default player mode, custom shortcuts, per-UP volume balancing, random playlist playback, and many other enhancements.
uBOL-home
uBlockOrigin/uBOL-home
uBlock Origin Lite (uBOL) is an efficient content blocker based on the MV3 API that operates entirely declaratively, requiring no permanent process for filtering, with the browser handling CSS/JS injection without consuming CPU or memory.
EdgeTranslate
EdgeTranslate/EdgeTranslate
Edge Translate is an open-source browser translation extension for Chrome, Edge, Firefox, QQ and 360 browsers, offering selection translation, full-page translation and PDF translation with a reading-first experience
globalSpeed
polywock/globalSpeed
A web extension to set a default speed for video and audio, with URL rules, media hotkeys, volume boost, and pitch shift filters.
Beav
Jamailar/Beav
Beav is a local-first AI content studio covering research, topic selection, writing and rewriting, image generation and talking-head video editing, with a knowledge base and long-term account memory for macOS, Windows and Linux.
deepseek-pp
zhu1090093659/deepseek-pp
An open-source browser extension for DeepSeek Web that turns it into an AI Agent workspace with bilingual experience, memory, projects, Skills, MCP, multimodal media, browser control, conversation export, and automation.
solomd
zhitongblog/solomd
A local-first Markdown editor with a built-in MCP server, letting AI agents like Claude Code, Codex, and Cursor drive your vault directly. Supports 14 AI providers BYOK.
hydra
ja7ad/hydra
A high-performance multi-source download manager and accelerator developed in Rust, supporting Windows, macOS, and Linux with GUI, CLI, and browser integration.