Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
15 194 користувача
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.
14 713 користувачів
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13 353 користувача
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.
12 984 користувача
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)
12 443 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)
12 417 користувачів
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
11 830 користувачів
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
11 539 користувачів
Modify Header Value
Add, modify or remove a header for any request on desired domains.
11 236 користувачів
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
11 018 користувачів
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
10 979 користувачів
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
10 849 користувачів
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
10 467 користувачів
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
10 399 користувачів
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
10 266 користувачів
Simulateur mobile
Simulateur de smartphone sur ordinateur très réaliste avec plusieurs modèles disponibles pour tester son site mobile.
10 251 користувач
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10 127 користувачів
