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.
14 306 użytkowników
ImageAssistant Batch Image Downloader
An image extractor for sniffing, analyzing and batch downloading images from web page.
13 652 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)
13 504 użytkowników
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13 206 użytkowników
Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
12 561 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.
12 530 użytkowników
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
12 406 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)
12 132 użytkowników
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
11 880 użytkowników
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
10 608 użytkowników
Modify Header Value
Add, modify or remove a header for any request on desired domains.
10 505 użytkowników
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
10 345 użytkowników
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
10 111 użytkowników
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
10 057 użytkowników
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10 057 użytkowników
Angular DevTools
Angular DevTools extends Firefox DevTools adding Angular specific debugging and profiling capabilities.
9844 użytkowników
