Clear Cache
Advanced cache clearing with time periods, current tab filter, and smart notifications. Perfect for developers and power users. F9 shortcut included!
58,804 人のユーザー
Chrome Mask
Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.
15,762 人のユーザー
ColorZilla
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
143,833 人のユーザー
Cookie-Editor
Cookie-Editor lets you efficiently create, edit and delete a cookie for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy.
89,192 人のユーザー
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
51,364 人のユーザー
Disable JavaScript
Adds the ability to disable JavaScript for specific sites or specific tabs. You can customize the default JS state (on or off), the disable behavior (by domain or by tab) and much more.
34,212 人のユーザー
Google Lighthouse
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
15,951 人のユーザー
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)
14,554 人のユーザー
JavaScript Toggle On and Off (WebExtension)
Toggle JavaScript engine on and off the easy way
13,449 人のユーザー
Proxy Toggle
Toggle between direct connection and a single proxy server via a toolbar icon.
10,071 人のユーザー
Emoji Cheatsheet
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
8,117 人のユーザー
WebScrapBook
Capture web pages to local device or backend server for future retrieval, organization, annotation, and edit.
7,551 人のユーザー
