Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
16 036 användare
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)
15 514 användare
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
15 137 användare
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13 192 användare
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)
12 756 användare
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
12 471 användare
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.
12 434 användare
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
12 285 användare
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
12 042 användare
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
11 924 användare
Modify Header Value
Add, modify or remove a header for any request on desired domains.
11 688 användare
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
11 501 användare
Simulateur mobile
Simulateur de smartphone sur ordinateur très réaliste avec plusieurs modèles disponibles pour tester son site mobile.
11 003 användare
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10 637 användare
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
9 774 användare
HackBar V2
[No License, FOREVER FREE] A HackBar for new firefox (Firefox Quantum). This addon is written in webextension and alternatives to the XUL version of original Hackbar. You can ask request here: https://github.com/Hack-Free/HackBar
9 519 användare
