To use these add-ons, you'll need to download Firefox.

Log in

10,107 extensions found in Web Development

Filter results
Search results
  • Server IP

    Server IP

    Displays website servers IP address and the reverse DNS of that IP address.

    Infoserv

    4 users

  • Piwik PRO Tracking Helper

    Piwik PRO Tracking Helper

    Inspect commands sent to the browser tracker and outgoing network events

    auto200

    4 users

  • Dark Mode Toggle

    Dark Mode Toggle

    Toggle dark mode for any website.

    Cách Chơi Game

    4 users

  • netbeep

    netbeep

    Plays a sound on each network request. Listen to your website and hear how it performs. Different sounds for different request types (same-origin, cross-origin, tracking, malware). The bigger the file, the higher the pitch.

    Robert Gerlach

    4 users

  • Websockets URL Sender

    Websockets URL Sender

    Sends the URL of the website you are visiting via websockets.

    Python Schlange

    4 users

  • Easy Url Manager

    Easy Url Manager

    Chrome Extension to easily manage complex URL params and search queries

    Fabian Jaramillo

    4 users

  • GitHub Widener

    GitHub Widener

    Expands the GitHub and Gist code pane to the full window width.

    danstewart

    4 users

  • Analog Clock

    Analog Clock

    A simple Analog clock created with HTML and CSS and Javascript.

    Sriram

    4 users

  • GTM variables move

    GTM variables move

    Moves User defined variables before built-in variables in GTM variables view. Enabables short cut for saving your work.

    Knapstad

    4 users

  • AiK Seo bar

    AiK Seo bar

    An webextension for basic SEO needs. Russian interface only. Добавляет нумерацию к SERP Яндекса и Google, подсвечивает rel=nofollow и ссылки в блоках noindex. Позволяет передавать адрес текущей страницы или домена на анализ в различные сервисы.

    Artyem V. Shkondin

    4 users

  • bfzf

    bfzf

    bfzf is a browser extension for Chrome and Firefox that makes it easy to search through your history and bookmarks. It uses fuzzy finding to quickly find what you’re looking for, helping you navigate your browser faster and more efficiently.

    iypetrov

    4 users

  • New Window CSS Editor

    New Window CSS Editor

    Edit CSS in a separate window and apply changes inline

    Alex

    4 users

  • Page Up/Down Floating Buttons

    Page Up/Down Floating Buttons

    Adds floating buttons for easy page navigation up and down

    honghe

    4 users

  • Mixpanel Log

    Mixpanel Log

    Log Mixpanel Events to dev tools custom console

    EsaKhamis

    4 users

  • Smart Decoder

    Smart Decoder

    Right-click any selected text and instantly encode or decode it in common formats like Base64, Hex, Binary, Morse Code, ROT13, and more. A simple Swiss-army knife for text conversion.

    arlocolburnextensions

    4 users

  • Web Injector

    Web Injector

    Customize any website by injecting your own CSS and JavaScript. Includes tools for Dark Mode and RTL text fixing.

    Eslam Gomaa

    4 users

  • Github Repo Search

    Github Repo Search

    Quickly access your Github repos from your browser search bar

    First+Third

    4 users

  • Clear History

    Clear History

    "Clear History" is a convenient Firefox addon designed to effortlessly manage your browsing privacy. With a simple click, it clears your browsing history, cookies, cache, and other traces of online activity, ensuring your browsing

    fb88

    4 users

  • Unified Docs Switcher

    Unified Docs Switcher

    Automatically redirect to preferred documentation version for PostgreSQL, Python, and Django

    Doug Harris

    4 users

  • SQLite Query Executor

    SQLite Query Executor

    SQLite Query Executor

    Milad Vazan

    4 users

  • SeLite Miscellaneous

    SeLite Miscellaneous

    It provides miscellaneous internal components for various parts of SeLite group of extensions.

    Peter Lyons Kehl

    4 users

  • Day Counter

    Day Counter

    Displays elapsed and remaining days of a year. This is the add-on you always wanted to have for your planning, organizer, scheduling, accounting, logistics. Find the day of the week of your birthday. World's 1st app created with Grok 3 beta AI!

    Libor Benes

    4 users

  • AdvertServe Geo Testing

    AdvertServe Geo Testing

    Do you use AdvertServe to serve ads on your web site, mobile apps or videos? Verify that your ads are served correctly in various geographic locations around the world without using a proxy server.

    Mike Cherichetti

    4 users

  • CSS Analyzer by Project Wallace

    CSS Analyzer by Project Wallace

    Browser devtools extension for analyzing CSS, powered by Project Wallace.

    Bart Veneman

    4 users

  • medium infinity reader

    medium infinity reader

    Redefined 'referer' in HTTP header to read medium article. 🇹🇼 繞過 Medium 閱讀文章限制次數，無限暢讀 Medium。 原理：透過修改 HTTP Header 的方式，將來源改成 Twitter。 沒有任何破解行為，請使用者支持正版！ 歡迎協助改善，提出建議： https://github.com/yiyu0x/medium-infinity-reader

    BryanHsu

    4 users