An open API service indexing awesome lists of open source software.

Firefox

Firefox is a free and open source web browser developed by Mozilla Foundation. First released in 2002 under the name Phoenix. It’s available for most operating systems including Windows, macOS, Linux and most phones and tablets.

https://github.com/eckertalex/borealis-firefox

Borealis for Firefox

borealis firefox theme

Last synced: 11 Oct 2025

https://github.com/robmcelhinney/open-firefox-urls-chrome

Windows utility to get URLs currently open in Firefox and open them in Chrome.

chrome firefox python windows

Last synced: 14 Apr 2026

https://github.com/kaihendry/webscreenshot

Take a screenshot of a Webpage and upload to S3 bucket

firefox screenshot

Last synced: 29 Mar 2025

https://github.com/dusanvin/magentasport-videoplayer-shortcuts

Tampermonkey-Userscript for NBA-style J/L/U/O/Space Keyboard-Shortcuts for the MagentaSport Player. Tested with Mozilla Firefox.

basketball firefox keyboard-shortcuts magentasport nba shortcuts tampermonkey tampermonkey-userscript video video-player videoplayer

Last synced: 18 May 2026

https://github.com/aarrwnh/tab-mover-alternative

Heavily modified fork of 'Tab Mover' addon by Guido Berhoerster.

addon firefox svelte tabs typescript webextension

Last synced: 18 May 2026

https://github.com/codlocker/activity-manager

Addon For Managing User Browsing. STATUS: Partially Complete, Stable

activity addons-mozilla-org firefox

Last synced: 12 Aug 2025

https://github.com/irismessage/ccc_client

Cookie Clicker Cloud save backup client by timia2109

browser-extension chrome cookie-clicker extension firefox

Last synced: 14 May 2026

https://github.com/marianoguerra/immutablejs-devtools-formatter-lib

immutablejs formatters for firefox and chrome you can load in your projects, no extension required

chrome devtools firefox formatter immutablejs

Last synced: 20 Apr 2026

https://github.com/gil9red/filling_checkout_pizzagold

Filling checkout pizzagold (#firefox #addon)

browser-extension firefox firefox-addon firefox-extension

Last synced: 12 Oct 2025

https://github.com/lunagus/vid-dlp

A fast implementation of a scraper and downloader using yt-dlp, supports multiple sites.

audio download english ffmpeg file firefox language latino linux mac movie playwright python script search subtitles windows yt-dlp

Last synced: 07 Apr 2026

https://github.com/eric15342335/firefox-bookmark-invalidation

Filter and display invalid websites URL from the firefox bookmark json file.

bookmark cloudscraper colorama concurrent-futures firefox json python requests tqdm

Last synced: 19 Jan 2026

https://github.com/clach04/linkedimagedownloader_en

English translation of linkedimagedownloader (linked image downloader save images) extension for Mozilla FireFox. Based on linkedimagedownloader-0.03beta-fx.xpi

chrome chrome-extension chromium download downloader firefox firefox-addon firefox-extension gif image jpg png webextension

Last synced: 07 Apr 2026

https://github.com/etircopyh/fox-hax

Firefox Browser hacks and tweaks

appearance configuration firefox interface styling userjs

Last synced: 18 May 2026

https://github.com/tomudding/contain-everything

This Firefox add-on isolates your *Popular Company's website(s)* activity from the rest of your web activity in order to prevent *Popular Company* from tracking you outside of the *Popular Company's website(s)* via third party cookies.

amazon-container facebook-container firefox firefox-addon firefox-containers google-container microsoft-container reddit-container twitter-container

Last synced: 13 Mar 2026

https://github.com/georapbox/dark-ocean-theme-webextension

A dark bluish theme for Firefox, similar to the original dark theme of Firefox Developer Edition.

dark-theme firefox firefox-extension theme web-extension

Last synced: 21 Feb 2026

https://github.com/livelace/webchela

webchela ("web" + "chela") is a daemon for interacting with web pages through automated browsers (Chrome or Firefox).

chrome daemon firefox grpc selenium tigervnc web-scraping

Last synced: 14 Apr 2026

https://github.com/vansteen/faves-on-tabs

A Firefox Extension that displays some selected bookmarks on a New Tab. 🦊

firefox firefox-addon firefox-extension

Last synced: 17 Feb 2026

https://github.com/nsatri55/yandex-images-parser

🖼️ Parse and download images and videos from Yandex Images search with this high-performance C library, featuring batch and multi-threaded downloads.

c downloader firefox firefox-esr gcc gecko google-image-search html image image-python parsing-library python-parser search selenium yandex-api yandex-image-parser yandex-images yandex-parsing

Last synced: 12 May 2026

https://github.com/andressakarla/testes-automatizados-e2e-locaweb_cypress

Projeto de Testes Automatizados E2E (Ponta a Ponta) desenvolvido para um desafio técnico de QA sobre "Identificar cenários positivos e negativos, comportamentos esperados e relevantes, para garantir e controlar o e2e da funcionalidade de "Registro de domínio web"" do site Locaweb em Cypress e Javascript na ferramenta GitHub Actions

chrome cypress e2e-tests firefox fixtures gherkin github-actions github-workflows javascript json linux-ubuntu windows-10

Last synced: 11 Apr 2026

https://github.com/remino/firefox-style

Firefox styling for the browser and dev tools

css firefox userchrome

Last synced: 14 Oct 2025

https://github.com/kashav/vim-searchfox

Use Searchfox (https://searchfox.org) directly from Vim.

firefox mozilla vim

Last synced: 23 Aug 2025

https://github.com/laedit/the-old-reader-bookmark

The Old Reader Bookmark addin for Firefox

bookmark firefox the-old-reader typescript webextension

Last synced: 16 Oct 2025

https://github.com/codesign-cloud/cdc-browser-plugin-starterkit

Starterkit with Preact and Tailwind for Chrome/Firefox/Edge/Tor and compatible Browser Plugins/Add-Ons

browser-addon browser-extension chrome chrome-extension edge edge-extension firefox firefox-addon plugin tor tor-browser

Last synced: 20 Apr 2026

https://github.com/spaceshaman/dark

Step into the dark side of the force and discover the secrets of the universe without the risk of eye damage!

alacritty alacritty-colorscheme alacritty-config alacritty-theme firefox firefox-theme obsidian obsidian-theme thunderbird thunderbird-theme vscode vscode-theme

Last synced: 05 Apr 2025

https://github.com/thenolle/firefox-2fa-sidebar

A secure, local-only TOTP generator in your Firefox sidebar.

extension firefox firefox-addon firefox-extension nolly totp

Last synced: 12 Oct 2025

https://github.com/vallek/firefox-omni-no-oneoffs

Disables search buttons (aka one offs) from Firefox urlbar (aka omnibar)

firefox ui urlbar

Last synced: 17 Oct 2025

https://github.com/mendel5/tools

Overview of useful tools, applications, etc.

applications apps firefox link links list mozilla overview tool tools useful website websites

Last synced: 06 Jan 2026

https://github.com/naseem1amjad/urdubar

Urdubar is webbrowser extension for writing Urdu / Arabic in web page.

addon arabic chrome-extension edge extension firefox online urdu web

Last synced: 21 Apr 2026

https://github.com/f33rni/chromium-to-mozilla-cookies

Simple yt-dlp code based zero-dependency script that converts and decrypts cookies from chromium-based browser for importing into Mozilla's firefox-based browsers

brave chrome chromium cookie-decryptor cookie-parser cookies decryptor exporter firefox importer mozilla mozilla-firefox parser

Last synced: 07 May 2026

https://github.com/gramian/chicken-index

A CHICKEN Scheme symbol index

chicken-scheme firefox json scheme

Last synced: 20 Jul 2025

https://github.com/mimvoid/panefox

a little firefox css

firefox firefox-css firefox-theme

Last synced: 03 Apr 2025

https://github.com/2zqa/tab-shortcuts

Keyboard shortcuts for managing tabs.

firefox shortcuts webextension

Last synced: 18 Oct 2025

https://github.com/cmdwtf/send2prowl2

A browser extension that provides a quick and easy way to send a webpage to Prowl (https://www.prowlapp.com).

browser-extension firefox firefox-addon prowl-notifications prowlapp

Last synced: 01 Jun 2026

https://github.com/heimdallrj/firefox-lookup

Dictionary Lookup Add-on for Firefox

browser-extension dictionary firefox word-lookup

Last synced: 03 Mar 2025

https://github.com/jollysleeper/priconf

🌐 Web Extension for managing your configs for alternate frontends.

firefox firefox-addon firefox-extension javascript

Last synced: 28 Mar 2025

https://github.com/xgqt/chrome

userChrome.css and userContent.css for Firefox (mirror)

firefox

Last synced: 05 Apr 2025

https://github.com/rajatt95/tutorial_yt_rajat_designpattern_pom_cypress_js

This repository contains a Tutorial for Page Object Model (POM) design pattern implementation using Cypress and Javascript for automated testing of applications.

chrome cypress edge electron firefox javascript nodejs page-object-model vscode

Last synced: 06 May 2026

https://github.com/dimithrandir/oixs

Open in X seconds - a browser extension for opening links with a delay

addon chrome chrome-extension chromium extension firefox firefox-extension webextension

Last synced: 17 Feb 2026

https://github.com/sams96/bookmark-feeder

Firefox bookmarks -> atom feed

bookmarks firefox rss self-hosting

Last synced: 23 Jan 2026

https://github.com/kenlimmj/user-overrides.js

Custom user-overrides.js for Firefox, meant to work with ghacks-user.js

firefox privacy

Last synced: 14 May 2026

https://github.com/alex-stout/projectionlab-account-sync

Syncs account balances to ProjectionLab for progress tracking

browser-extension chrome-extension finance firefox projectionlab wxt

Last synced: 06 May 2026

https://github.com/ditsuke/firefox-cfg

My Firefox Config

firefox firefoxcss userjs

Last synced: 15 Mar 2026

https://github.com/brycedorn/colorlovin

Import one of over 4,577,158 user-created color palettes to colorize your browser

colourlovers firefox firefox-color

Last synced: 20 Jun 2025

https://github.com/naseem1amjad/bionify-firefox-extension-source-code

Bionify (Easy Reading on Web) Firefox extension / addon source code

firefox firefox-addon sourcecode

Last synced: 20 Jun 2025

https://github.com/robinboers/frontend-delight-firefox

Simple dark theme with orange accents for Firefox

firefox themes userchromecss

Last synced: 24 Jan 2026

https://github.com/indirivacua/SIGEVA-JSON

Extensión de navegador para cargar automáticamente trabajos científicos en SIGEVA a partir de un bibtex.

bibtex chrome chrome-extension conicet cvar extension firefox firefox-extension sigeva unlp

Last synced: 26 Oct 2025

https://github.com/daaku/unblock-paste

Add-On to unblock pasting in Firefox.

addon extension firefox

Last synced: 26 Oct 2025

https://github.com/alhadis/mozilla-profile-tools

Wrapper for building CLI utilities with niche functions related to Mozilla profile directory management.

firefox firefox-profile firefox-profiles lz4 mozilla mozlz4 user-profile user-profiles

Last synced: 26 Oct 2025

https://github.com/smcnikita/firefox-themes

A collection of vibrant color themes for your Firefox browser.

firefox firefox-theme theme themes

Last synced: 28 Mar 2025

https://github.com/zebbern/firefox-tempmail-extention

Firefox Extension | To generate and manage temp emails using multiple providers. Designed to help you create, view, and copy temp-mail addresses without losing access mid-session.

firefox firefox-addon firefox-browser firefox-extension firefox-extensions firefox-webextension javascript temp temp-email temp-mail temp-mail-api temp-mail-app tempmail tempmail-api tempmail-server verification-code verify-email

Last synced: 05 May 2025

https://github.com/a1ex-ak/whitesur-macos-firefox-theme

WhiteSur-based theme for Firefox on MacOS & Windows. Make your Firefox look like Safari.

firefox firefox-theme macos macos-siquaia macosx safari siquaia whitesur-theme windows

Last synced: 20 Mar 2025

https://github.com/merkksgit/userchromecss

My Firefox userChrome.css

firefox

Last synced: 03 Sep 2025

https://github.com/rthaut/challenge-grid-autofill-extension

A browser extension that programmatically parses challenge prompts and automatically fill in the corresponding response for websites using security/challenge grids, such as Entrust eGrid and Deepnet Security GridID.

authentication browser-extension chrome chrome-extension firefox firefox-addon firefox-extension security webextension

Last synced: 16 Mar 2026

https://github.com/itsnickbarry/mhzchoice-ultrawide

Ultrawide monitor compatibility for the MHzChoice streaming service 📽️

2560x1080 3440x1440 browser-extension firefox firefox-addon mhzchoice ultrawide webextension wow

Last synced: 11 Apr 2025

https://github.com/richja/paid-notify

Chrome extension to notify you ahead about paid articles

browser-extension chrome extension firefox

Last synced: 30 Jan 2026

https://github.com/tonybengue/tabtab-browser-extension

It is a webextension which modify the new tab page

browserextension firefox google-chrome-extension javascript

Last synced: 15 Apr 2026

https://github.com/belidzs/ek

This extension will automatically fill the Egeszsegkonyha IPA feedback form with 10 stars to all questions so you don't have to. You can still edit your answers before submission.

firefox firefox-addon firefox-extension

Last synced: 05 May 2025

https://github.com/jccalhoun/firefox-addons

some addons i am working on for firefox

clock extension firefox firefox-addon webextension

Last synced: 18 Mar 2025

https://github.com/seinopsys/fur-notify

Keep track of your Furbooru notifications and messages in (almost) real time

browser-extension chrome-extension firefox firefox-addon firefox-extension firefox-webextension furbooru google-chrome notifications

Last synced: 08 May 2026

https://github.com/loong64/playwright

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

automation chrome chromium e2e-testing electron end-to-end-testing firefox javascript playwright test test-automation testing testing-tools web webkit

Last synced: 31 Jan 2026

https://github.com/alexanderreaper7/firefox-extras

firefox customizations, improved find bar

firefox

Last synced: 06 Apr 2026

https://github.com/gill-singh-a/firefox-whatsapp-web-group-name-extractor

A Simple Python Program that extracts Group Name present in WhatsApp Web logged on Firefox Browser

digital-forensics firefox python3 strings whatsapp-web

Last synced: 01 Feb 2026

https://github.com/artsys-h/zen-install

Install latest Zen version Easily, for non Flatpak users.

firefox firefox-based firefox-browser zen zen-browser

Last synced: 01 Feb 2026

https://github.com/freema/firefox-devtools-mcp

Model Context Protocol server for Firefox DevTools - enables AI assistants to inspect and control Firefox browser through the Remote Debugging Protocol

claude-code firefox mcp mcp-server

Last synced: 17 Mar 2026

https://github.com/matthieulemoine/enhanced

An extension to enhance the web.

chrome extension firefox payfit spotify

Last synced: 04 May 2026

https://github.com/abhijithvijayan/vite-plugin-wext-manifest

Vite plugin that lets you specify `manifest.json` properties to appear only in specific browsers.

arc brave chrome edge firefox manifest opera plugin vite-plugin vivaldi webextension wext yandex

Last synced: 15 May 2026

https://github.com/planetarium/9charger

9c AP Recharge Notifier / Recharge Query Browser Extension

brave chrome edge extension firefox nine-chroncies opera

Last synced: 15 Apr 2026

https://github.com/bberberov/mozilla-profile-utils

A collection of utilities for working with Mozilla profiles; Firefox, Thunderbird and derivatives

firefox jinja jinja-templates thunderbird userjs

Last synced: 26 Feb 2026

https://github.com/dpbm/getfavicons

A firefox addon to get favicons from your tabs

addon css download extension favicon favicons firefox html js mozilla web

Last synced: 07 May 2026

https://github.com/vamshi-ka/keeping-tabs

Firefox extension for automatic tab numbering and keyboard navigation. Built for Zen Browser.

browser-extension firefox firefox-extension keyboard-shortcuts productivity tab-management webextensions zen-browser

Last synced: 26 Feb 2026

https://github.com/szczyglis-dev/browser-ip-host-auto-header

[JS] Extension for Chrome, Firefox and Opera browsers which allows you to create a list of IP addresses and their corresponding hosts. Hostnames assigned to the IP address are then automatically appended to the request in the HTTP "Host" header if a connection to the given IP address is detected.

browser-extension chrome-extension firefox firefox-addon firefox-extension header host http ip list opera-addon opera-extension website

Last synced: 15 May 2026

https://github.com/shawn-bluce/site-language-swicher

A lightweight frontend utility for seamless multi-language switching functionality on websites. 一个轻量级的前端工具,帮助网站实现无缝的多语言切换功能。

chrome chrome-extension firefox firefox-addon firefox-extension

Last synced: 16 Apr 2026

https://github.com/bevizlaszlo/calmfox

Firefox theme with purple Private windows and minimal UI changes

browser-theme css firefox firefox-css firefox-customization firefox-theme firefox-tweaks theme

Last synced: 12 Feb 2026

https://github.com/mikaleb/hidepuretech

🚘 Hide car ads with Puretech engine

car chrome extension firefox hide-puretech opera productivity puretech react

Last synced: 09 Apr 2026

https://github.com/connorslade/norddarkred

⭕ A dark, red Firefox theme based off of the Nord color palette

firefox firefox-addon nord

Last synced: 12 Feb 2026

https://github.com/blossomtheme/firefox

Blossom Theme for Firefox

firefox firefox-theme

Last synced: 13 Feb 2026

https://github.com/linkid/git-pr-reverse

WebExtension to list open Git pull requests of a file in a popup

extension firefox git web

Last synced: 16 Apr 2026

https://github.com/ro-ka/presentation-gif-on-firefox

Presentation: gifalicious to the Firefox Marketplace

firefox javascript presentation

Last synced: 17 May 2026

https://github.com/adalinesimonian/pa-vei-focus

Improves the focus handling of input fields on the På Vei website.

extension firefox firefox-addon firefox-extension language-learning norwegian norwegian-language

Last synced: 15 May 2026

https://github.com/wcharczuk/threads-plus

It does things to the Threads web app.

firefox firefox-addon firefox-extension

Last synced: 19 Mar 2026

https://github.com/w45p85/langchoose

A skript that automatically redirects users to localized pages based on their browser language.

browserlanguage chrome css edge firefox html javascript javascriptredirect languageredirection webdesign webdevelopment

Last synced: 16 Feb 2026

https://github.com/evanxd/xul-101

A document to help developers learn how to hack with XUL in Firefox.

firefox xul

Last synced: 11 Jan 2026

https://github.com/rugk/offline-qr-code-35c3

35c3 lightning talk about the Offline QR Code Generator, slides/talk in German

35c3 addon c3 chaos-communication-congress firefox qr-code qr-code-generator qr-generator qrcode qrcode-generator webextension

Last synced: 19 Mar 2026