Request Interceptor
Intercept HTTP and HTTPS Requests. Add custom rules to modify request/response headers, block/redirect requests, modify query params. Example Usage: This extension can be used to block all ads having url (*/ad.x.com/*) by creating rules
792 users
External Application Button (WebExtension)
A highly customizable external application button and context-menu items
790 users
JSON Beautifier & Editor
Display JSON objects by transforming them into Syntax editable highlighted HTML
776 users
Live Reload — monitor and reload html, css, js
Addon for web devs. Monitor included JS, CSS and/or HTML in frames and automatically reload the host page when a change is detected in the included source. Supports inline reloading of stylesheets and frames without reloading the host page.
771 users
SQLite Reader
Easily browse, edit and manage SQLite database inside your browser!
770 users
Moesif Origin & CORS Changer
The most popular and feature rich CORS tool on Chrome (over 100K weekly active users) is rebuilt for Firefox with more features. This plugin allows you to send cross-domain requests. You can also override Request Origin and CORS headers.
770 users
Auto Form
Copy/Paste all fields from a web form (with hotkey or contextual menus)
767 users
Google Cache
Google Cache lets you visit retrieve the web page from Google Web Cache when the site is offline.
764 users
Github Repository Size
Add repositories size to their GitHub summary band using the GitHub public API.
763 users
Discord Rich Presence
Discord rich presence extension with open API.
757 users
GhostText
Use your text editor to write in your browser. Everything you type in the editor will be instantly updated in the browser (and vice versa).
756 users
Scan QR code
Scan QR code through Webcam and screenshot
754 users
Web Editor
Edit the every web page you want !! .... Making your own custom web page , using any other web page is just a click away !!! You can convert any web page into an editable document , which can then be edited and saved .
754 users
Responsify viewer
A simple slider to check the responsivness of the website.
752 users
Bug Magnet
Right-click context menu to help with exploratory testing
750 users
Ctool 程序开发常用工具
程序开发常用工具,哈希/加解密/编码转换/时间戳/二维码/拼音/IP查询/代码优化/Unicode/正则等...
744 users
RDS bar (seo: pr, dmoz, alexa, seomoz)
RDS Bar is a handy tool for quick analysis of website and page SEO indicators, designed for webmasters and optimizers. And also with a number of useful features for ordinary users.
744 users
Rotate that Video Player
Improve your video experience by effortlessly rotating your video clips by 90, 180, or 270 degrees.
739 users
Bitly URL Shortner
Bitly service to convert long URLs or Links of websites to short.
737 users
pylote.io
Trouve des missions en te référençant sur une quinzaine de plateformes depuis une interface unique.
737 users
Color Picker
A simple color picker extension. Easily pick any color on the screen, view history of picked colors, and copy or clear them with a single click.
733 users
Bootstrap - Responsive Helper
Show the Bootstrap grid class currently active (XS, SM, MD, LG, XL, XXL). Tested and work with the versions: 3, 4, 5 Not compatible versions: 4 Alpha 2
733 users
Toggle Cache
Disables or enables the browser cache.
732 users
JPEG XL viewer
Displays JPEG XL images.
726 users