Invisible Video Downloader
Silently downloads all video resources on page load
693 users
Content Security Policy (CSP) Generator
Automatic Content Security Policy (CSP) Generator. Generate a Content Security Policy header in minutes on any website. Built by https://csper.io
692 users
SnowEyes
洞悉无形,守护无界
691 users
Favicon Detector
A simple way to detect website icons.
688 users
Permanent Inspect Element
Save the changes you make to a page with Inspect Element so they wouldn't go away after refreshing
687 users
Penetration Testing Kit
Attention! This version is no longer supported. Use /firefox/addon/owasp-penetration-testing-kit/ extension instead.
685 users
Netmirror Extension
Add, modify or remove a header for any request.
684 users
Cloudflare Optics
Cloudflare Optics is a browser extension that helps display interesting information when you visit a site, particularly if that site is proxied through Cloudflare.
684 users
SugarMelt
Allows you to change font/style; also adds cheats
681 users
Table Extractor - TableConvert
Instantly convert tables on any webpage to multiple formats
677 users
OdooTerminal
Terminal for Odoo (v11-18. CE & EE) Works on backend & frontend (with limitations) Press "CTRL + ," to toggle terminal or use the browser action icon.
674 users
Bug Magnet
Right-click context menu to help with exploratory testing
673 users
InlineDisposition Reloaded
InlineDisposition Reloaded changes the disposition type of "Content-Disposition" response headers from "attachment" and "file" to "inline"
673 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.
672 users
Disable CSP for a minute
Temporarily disables CSP for the current tab's website. Right click on the page, then disable CSP.
671 users
Proxy Checker
Check the quality of your proxies' IPs in bulk.
670 users
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
667 users
Toggle Cache
Disables or enables the browser cache.
662 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.
658 users
SQLite Reader
Easily browse, edit and manage SQLite database inside your browser!
658 users
Custom CSS
Overwrite or inject custom CSS into website.
656 users
CSS Stacking Context inspector
Helps inspecting the css stacking contexts and solving the z-index war.
653 users
Font Inspector (WebExtension)
Click on any element to get the font info in a page popup
645 users
Code Editor
Powered by the Monaco Editor, it provides support for basic syntax colorization, IntelliSense, validation and Diff Editor features.
644 users
Google Cache
Google Cache lets you visit retrieve the web page from Google Web Cache when the site is offline.
643 users