Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16 185 користувачів
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
15 013 користувачів
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)
14 683 користувача
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
13 919 користувачів
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12 949 користувачів
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.
12 863 користувача
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)
12 652 користувача
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
12 414 користувачів
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
12 034 користувача
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
11 846 користувачів
Simulateur mobile
Simulateur de smartphone sur ordinateur très réaliste avec plusieurs modèles disponibles pour tester son site mobile.
11 760 користувачів
Modify Header Value
Add, modify or remove a header for any request on desired domains.
11 522 користувача
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
11 489 користувачів
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
11 167 користувачів
MobiDevTools
A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.
10 887 користувачів
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10 522 користувача
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
10 113 користувачів
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
9 871 користувач
