Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
사용자 15,543명
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.
사용자 15,409명
Поиск Яндекс
Добавляет Яндекс к поисковым движкам.
사용자 15,034명
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)
사용자 14,481명
Text Link
Allows URI texts written in webpages to be loaded by double clicks.
사용자 14,443명
Lightning Autofill
The most popular autofill extension, boosting productivity since 2010.
사용자 13,741명
RESTED
A REST client for the rest of us
사용자 13,580명
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
사용자 13,259명
Export Cookies
Export cookies to a Netscape format cookies.txt file.
사용자 12,963명
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)
사용자 12,596명
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.
사용자 12,243명
Flag Cookies
A cookie and browser storage data manager on steroids to mark, 'flag', and manage cookies using rulesets.
사용자 11,978명
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
사용자 11,715명
Simulateur mobile
Simulateur de smartphone sur ordinateur très réaliste avec plusieurs modèles disponibles pour tester son site mobile.
사용자 11,638명
Header Editor
Manage browser's requests, include modify the request headers and response headers, redirect requests, cancel requests
사용자 10,875명
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
사용자 10,812명
Empty Cache Button
Cache clearing made easy. One click.
사용자 10,802명
Modify Header Value
Add, modify or remove a header for any request on desired domains.
사용자 10,794명
Fonts Ninja
Speed up your design workflow!
사용자 10,755명
IP Address and Domain Information
The Ultimate online investigation tool! See detailed information about every IP Address, Domain Name and Provider.
사용자 10,691명
RESTer
A REST client for almost any web service.
사용자 10,260명
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
사용자 9,920명
Save Screenshot
Saves the current page as image file or copies it to clipboard.
사용자 9,724명
Imageye - Image downloader
Find and download all images on a web page.
사용자 9,538명
axe DevTools® - Web Accessibility Testing
Add accessibility auditing to the Firefox Developer Tools
사용자 9,504명