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  • 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

    13 249 brukere

  • Text Link

    Text Link

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

    Piro (piro_or)

    13 215 brukere

  • Proxy SwitchyOmega

    Proxy SwitchyOmega

    Manage and switch between multiple proxies quickly & easily.

    Firefox user 12962115

    13 113 brukere

  • JavaScript Toggle On and Off (WebExtension)

    JavaScript Toggle On and Off (WebExtension)

    Toggle JavaScript engine on and off the easy way

    tlintspr

    12 422 brukere

  • 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

    12 012 brukere

  • RESTED

    RESTED

    A REST client for the rest of us

    Eline H

    12 010 brukere

  • 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

    11 791 brukere

  • Flag Cookies

    Flag Cookies

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

    Jan Riechers

    11 370 brukere

  • 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

    11 262 brukere

  • Lightning Autofill

    Lightning Autofill

    The most popular autofill extension, boosting productivity since 2010.

    tohodo.com

    11 250 brukere

  • Header Editor

    Header Editor

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

    泷涯

    11 241 brukere

  • PoE Overlay II Sync

    PoE Overlay II Sync

    Sync your Path of Exile 2 website session with PoE Overlay II

    Kyusung4698

    11 212 brukere

  • Get cookies.txt LOCALLY

    Get cookies.txt LOCALLY

    Get cookies.txt, NEVER send information outside with open-source

    kairi

    11 202 brukere

  • Imageye - Image downloader

    Imageye - Image downloader

    Find and download all images on a web page.

    Meagan Amrach

    11 091 brukere

  • Save Screenshot

    Save Screenshot

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

    Manuel Reimer

    10 660 brukere

  • Mobile simulator - responsive testing tool

    Mobile simulator - responsive testing tool

    Smartphone and tablet simulator on computer with several models to test mobile responsive websites.

    François

    10 169 brukere

  • Fonts Ninja

    Fonts Ninja

    Speed up your design workflow!

    Fonts Ninja

    10 076 brukere

  • Modify Header Value

    Modify Header Value

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

    Milen

    9 915 brukere

  • JSON Lite

    JSON Lite

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

    Lauri Rooden

    9 847 brukere

  • RESTer

    RESTer

    A REST client for almost any web service.

    Jan

    9 789 brukere

  • Empty Cache Button

    Empty Cache Button

    Cache clearing made easy. One click.

    mvm

    9 766 brukere

  • 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

    9 586 brukere

  • axe DevTools® - Web Accessibility Testing

    axe DevTools® - Web Accessibility Testing

    Add accessibility auditing to the Firefox Developer Tools

    Deque Systems Inc.

    9 532 brukere

  • ScriptCat

    ScriptCat

    Everything can be scripted, allowing your browser to do more!

    王一之

    9 474 brukere

  • Allow CORS: Access-Control-Allow-Origin

    Allow CORS: Access-Control-Allow-Origin

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

    Muyor

    9 289 brukere