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  • Proxy SwitchyOmega

    Proxy SwitchyOmega

    Manage and switch between multiple proxies quickly & easily.

    Firefox user 12962115

    14.180 brûkers

  • Xdebug Helper for Firefox

    Xdebug Helper for Firefox

    This extension is very useful for PHP developers that are using PHP tools with Xdebug support like PHPStorm, Eclipse with PDT, Netbeans and MacGDBp or any other Xdebug compatible profiling tool like KCacheGrind, WinCacheGrind or Webgrind.

    BrianGilbert_

    14.137 brûkers

  • SeoQuake SEO extension

    SeoQuake SEO extension

    Accelerate your SEO efforts on the fly. SEOquake is a free plugin for browsers that provides you with key SEO metrics for a specific page, along with other useful tools such as SEO Audit and many others.

    SeoQuake Team

    13.557 brûkers

  • Text Link

    Text Link

    Allows URI texts written in webpages to be loaded by double clicks.

    Piro (piro_or)

    13.450 brûkers

  • JavaScript Toggle On and Off (WebExtension)

    JavaScript Toggle On and Off (WebExtension)

    Toggle JavaScript engine on and off the easy way

    tlintspr

    12.809 brûkers

  • RESTED

    RESTED

    A REST client for the rest of us

    Eline H

    12.394 brûkers

  • My IP Hider VPN

    My IP Hider VPN

    My IP Hider VPN is number one tool for hiding your IP and unblocking any web site! If your Firefox version is less then 55 please install older My IP Hider VPN from "Version History" (https://goo.gl/7ZQQjZ)

    MyIpHider.com

    12.259 brûkers

  • Fake Filler

    Fake Filler

    A form filler that fills all form inputs (textboxes, textareas, radio buttons, dropdowns, etc.) with fake and randomly generated data. The purpose of this extension is to help developers and testers test forms quickly and easily.

    Hussein

    12.116 brûkers

  • javascript

    javascript

    add javascript that will run on this domain. back up your scripts in the options area (shortcut there by clicking the "JS" letters in the bottom right)

    chee

    11.801 brûkers

  • Flag Cookies

    Flag Cookies

    A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.

    Jan Riechers

    11.575 brûkers

  • Lightning Autofill

    Lightning Autofill

    The most popular autofill extension, boosting productivity since 2010.

    tohodo.com

    10.944 brûkers

  • Fonts Ninja

    Fonts Ninja

    Speed up your design workflow!

    Fonts Ninja

    10.452 brûkers

  • Imageye - Image downloader

    Imageye - Image downloader

    Find and download all images on a web page.

    Meagan Amrach

    10.319 brûkers

  • JSON Lite

    JSON Lite

    Fast JSON viewer - highlights, shows items count/size, handles large files

    Lauri Rooden

    10.317 brûkers

  • Header Editor

    Header Editor

    Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests

    泷涯

    10.194 brûkers

  • Save Screenshot

    Save Screenshot

    Saves the current page as image file or copies it to clipboard.

    Manuel Reimer

    10.194 brûkers

  • Modify Header Value

    Modify Header Value

    Add, modify or remove a header for any request on desired domains.

    Milen

    10.093 brûkers

  • Empty Cache Button

    Empty Cache Button

    Cache clearing made easy. One click.

    mvm

    9.915 brûkers

  • Proxy Toggle

    Proxy Toggle

    Toggle between direct connection and a single proxy server via a toolbar icon.

    Richard West

    9.777 brûkers

  • IP Address and Domain Information

    IP Address and Domain Information

    The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.

    webdev7

    9.705 brûkers

  • axe DevTools® - Web Accessibility Testing

    axe DevTools® - Web Accessibility Testing

    Add accessibility auditing to the Firefox Developer Tools

    Deque Systems Inc.

    9.683 brûkers

  • RESTer

    RESTer

    A REST client for almost any web service.

    Jan

    9.609 brûkers

  • Allow CORS: Access-Control-Allow-Origin

    Allow CORS: Access-Control-Allow-Origin

    Easily add (Access-Control-Allow-Origin: *) rule to the response header.

    Muyor

    9.382 brûkers

  • Refined GitHub

    Refined GitHub

    Simplifies the GitHub interface and adds many useful features.

    Sindre Sorhus

    9.366 brûkers

  • Simulateur mobile

    Simulateur mobile

    Simulateur de smartphone sur ordinateur très réaliste avec plusieurs modèles disponibles pour tester son site mobile.

    François

    9.337 brûkers