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.
12 626 użytkowników
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.
12 621 użytkowników
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12 154 użytkowników
Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
11 967 użytkowników
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)
11 819 użytkowników
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
11 699 użytkowników
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.
11 282 użytkowników
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
11 260 użytkowników
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
11 018 użytkowników
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)
11 007 użytkowników
Mobile simulator - responsive testing tool
Smartphone and tablet simulator on computer with several models to test mobile responsive websites.
10 398 użytkowników
Fonts Ninja - Font Finder & Identifier
Identify any font on any website in one click. The most accurate font finder - try, bookmark and get fonts as you browse.
9706 użytkowników
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
9498 użytkowników
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
9437 użytkowników
Modify Header Value
Add, modify or remove a header for any request on desired domains.
9396 użytkowników
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
9325 użytkowników
