To use Android extensions, you'll need Firefox for Android. To explore Firefox for desktop add-ons, please visit our desktop site.

Log in

748 extensions found in Web Development

Filter results
Search results
  • One Click W3C Markup Validation

    One Click W3C Markup Validation

    Sends the current page to the W3C Markup Validation Service.

    tr-wp.com

    31 users

  • PG_Refresher

    PG_Refresher

    Refresh the website page based on your desired time.

    mohamad mansouri khojasteh

    30 users

  • diffs.dev

    diffs.dev

    Adds a button to open diffs in the diffs.dev diff viewer.

    Jason Penilla

    30 users

  • GitHub Pages 404

    GitHub Pages 404

    Provides links to Owner's Profile and GitHub Repo on a GitHub Pages 404 page.

    Harsh Narayan Jha

    29 users

  • Discord Token

    Discord Token

    Logging into a account discord using a token, made easier. and opensource

    Daryl

  • WPlace Darkmode

    WPlace Darkmode

    Adds a button to wplace.live to switch between dark and light mode.

    Enea

    28 users

  • Reading Progress Bar PRO

    Reading Progress Bar PRO

    Shows a customizable reading progress bar as you scroll through content

    Sumalya Chatterjee

    28 users

  • ChatGPT Diagram Renderer

    ChatGPT Diagram Renderer

    Renders Diagrams, Chats, Mindmaps and other formats directly in the ChatGPT Webinterface, using the kroki.io API

    grayfallstown

    27 users

  • Proxy-Switch

    Proxy-Switch

    For I need a rock solid functional proxy switch, this add-on comes out. It is implemented totally in Rust language and compile to WebAssembly to make it fastest to run and solid to work with a modern frosted glass UI. No ads, no payment, just works.

    proxyman

    27 users

  • StrawPage Frames

    StrawPage Frames

    The extension works only on *.straw.page websites and allows for image upload and processing.

    Konrad

    27 users

  • JS and CSS snippets for web

    JS and CSS snippets for web

    Run peristent JavaScript and CSS code snippets on any website.

    Yupma

    27 users

  • CSP Bypass For Testing

    CSP Bypass For Testing

    Relax CSP Headers To Enable External Scripts And API Requests, For Development And Testing Only.

    Developer

    25 users

  • Export LocalStorage

    Export LocalStorage

    Exports LocalStorage data as a downloadable JSON file

    Soramie

    25 users

  • Unga Bunga User-Agent

    Unga Bunga User-Agent

    an extension for user agent spoofing with always up-to-date user agents and some nice features

    ShrekBytes

    25 users

  • IP Tracker

    IP Tracker

    The Extension displays the IP address and flag of the associated country...

    Tatami-web

    25 users

  • SenecaDone⏰️

    SenecaDone⏰️

    Never have to do homework again, SenecDone will do seneca assignments at the click of a button

    senecdone (Dean)

    25 users

  • Play Store ASO Tweak by TaoufikGFX

    Play Store ASO Tweak by TaoufikGFX

    **Play Store ASO Tweak by TaoufikGFX** enhances your *[Google Play Store]* experience with *[ASO]* insights, keyword analysis, and export of app assets. Optimize apps with detailed data for better *[SEO]*. *[Google Play Store]: Google Play Store*

    Taoufik

    24 users

  • Universal AI Captcha Solver

    Universal AI Captcha Solver

    Automatically solves image captchas using Gemini Vision AI.

    Adithyakrishnan

    24 users

  • FoxyPGP

    FoxyPGP

    PGP integration for web browsers

    FoxRefire

    24 users

  • Indicate TLS Pro v2

    Indicate TLS Pro v2

    Enhance your browsing security with Indicate TLS Pro v2! This Firefox addon displays the TLS protocol version of every website you visit, keeping you informed and aware of your online connection's safety.

    Cynthia Bell

    24 users

  • Free Medium For Mobile

    Free Medium For Mobile

    Easy navigation to the freedium.cfd for mobile browser

    Anas Khan

    24 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

    23 users

  • Domain Age Check

    Domain Age Check

    Domain age checker is a whois tool / extension developed by Cynexium (Umar) for checking any domain's age

    Umar

    23 users

  • Azure Tab Icons

    Azure Tab Icons

    Automatic browser tab icons for Azure

    Tom Plant

    23 users

  • PC Addons for Android

    PC Addons for Android

    Always show the desktop version of AMO in Firefox for Android.

    FoxRefire

    23 users