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

Log in

13,910 extensions found in Web Development

Filter results
Search results
  • AI Answer Finder

    AI Answer Finder

    Highlight any question on the web and get an instant AI-powered answer. Multiple modes, streaming, conversation history.

    abhiii.exe

    27 users

  • TumblrTextTint

    TumblrTextTint

    Make your Tumblr posts pop with colour! The TumblrTextTint extension enables you to format your Tumblr blog posts with a custom colour for your text!

    Xiacodes

    27 users

  • Export LocalStorage

    Export LocalStorage

    Exports LocalStorage data as a downloadable JSON file

    Soramie

    27 users

  • Factura Assist

    Factura Assist

    Automatiza el llenado de facturas electrónicas en admin.factura.gob.sv con un solo clic.

    Josue H.

    27 users

  • Myanimelist Redesign

    Myanimelist Redesign

    A redesigned user interface for Myanimelist.net

    Hritik Vaishnav

    27 users

  • Hermes Browser Extension

    Hermes Browser Extension

    Connect Firefox page context to Hermes Agent. Ask questions about what you’re viewing, use Local, Hermes Cloud, or Remote gateway modes, and review drafts in a browser sidebar.

    Jon Komet

  • Scrutinizer for GitHub and Bitbucket

    Scrutinizer for GitHub and Bitbucket

    This addon makes available Scrutinizer analysis results and code intelligence directly inside the GitHub and Bitbucket websites.

    Scrutinizer

    27 users

  • Audio Editor

    Audio Editor

    You can edit audio for free

    Firefox addon Free

    27 users

  • Evernote Idea Saver

    Evernote Idea Saver

    A Mozilla extension to save ideas directly to Evernote.

    Javier Gordon

    27 users

  • Human Paste PRO

    Human Paste PRO

    Paste text like a human — character by character with natural typing speed and rhythm.

    Abdallah Ramadan

    27 users

  • JS Beautifier settings tweaks

    JS Beautifier settings tweaks

    Changes jsbeautifier.org to have 4 spaces, no wrap, and be JSLint-happy by default.

    Ryan P. C. McQuen

    27 users

  • AI Image & Video Editor - AI Design Sidebar

    AI Image & Video Editor - AI Design Sidebar

    AI image & video generator: NanoBanana,GPT-4o,Veo3,Sora2,more... Instantly create stunning visuals and animations in smart sidebar

    echo

    27 users

  • Script for Me

    Script for Me

    A tiny userscript manager. Injects JavaScript code (and CSS code) into a page. A simple wrapper for the browser.contentScripts API. Works on Android as well as on PC. ウェブページにスクリプト（CSSも可）を注入する拡張機能。browser.contentScripts APIの単純なラッパー。Androidでも機能します。

    yobukodori

    27 users

  • Robot Helper

    Robot Helper

    A Robot that records user action and scans the page to generate RobotFramework test scripts (beta)

    Francesco De Stefano

    27 users

  • Best WordPress Tools

    Best WordPress Tools

    Different tools useful for WordPress developers and users

    Carlos Longarela

    27 users

  • Autorefresh on Error

    Autorefresh on Error

    Autorefreshes page after 3 seconds if page did not load.

    Zain Irshad

    27 users

  • Header Forge

    Header Forge

    Modify HTTP request and response headers. Add, override, or remove headers with per-rule toggles and URL filters.

    Indie Dev

    27 users

  • reStyle

    reStyle

    A user style manager which can load local files and apply UI styles even in Firefox 57+

    NiklasG

    27 users

  • Amazon Q Developer | GitHub issue helper

    Amazon Q Developer | GitHub issue helper

    Quickly assign GitHub issues to Amazon Q Developer - your AI assistant for code generation.

    Amazon Q Developer

    27 users

  • PeekCSS

    PeekCSS

    Inspect and copy CSS, images, colors, fonts, and assets on any webpage.

    Leon Grass

    27 users

  • Gemini Font

    Gemini Font

    Customize fonts, sizes, colors & line spacing for Gemini AI chat. Full RTL Arabic support included.

    AtSbi

    27 users

  • Rettiwt Auth Helper

    Rettiwt Auth Helper

    A browser extension for authenticating Rettiwt-API.

    Rishikant Sahu

    27 users

  • C3C UFC Utility

    C3C UFC Utility

    Import/export UFC file from/to C3C-supported platforms.

    BadAimWeeb

    27 users

  • stackoverflow context search

    stackoverflow context search

    👉 highlight text, right click, search on stackoverflow

    kosmosfourthreefour

    27 users

  • Extract & Ask: AI Workflow Tool

    Extract & Ask: AI Workflow Tool

    Extract web content from any tab, prepend AI prompts, and paste instantly into ChatGPT, Gemini, Copilot and more. Local processing, zero tracking.

    Faisal Bhuiyan

    27 users