Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16 086 käyttäjää
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
14 833 käyttäjää
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)
14 682 käyttäjää
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
14 182 käyttäjää
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
12 856 käyttäjää
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.
12 849 käyttäjää
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)
12 571 käyttäjää
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
11 851 käyttäjää
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
11 832 käyttäjää
Simulateur mobile
Simulateur de smartphone sur ordinateur très réaliste avec plusieurs modèles disponibles pour tester son site mobile.
11 722 käyttäjää
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
11 433 käyttäjää
Modify Header Value
Add, modify or remove a header for any request on desired domains.
11 346 käyttäjää
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
11 102 käyttäjää
MobiDevTools
A mobile devtools for debugging web sites and applications with the console, DOM, network info, sources, and more.
11 027 käyttäjää
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10 486 käyttäjää
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
9 994 käyttäjää
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
9 771 käyttäjää
