Extended Color Management
Ever wish that Firefox didn't use color management when viewing images or video? Turn it off easily with this add-on.
1,616 users
Auto Refresh
Auto Refresh - Automatically reloads any page at the interval you choose. Lightweight, fast, and built to stay out of your way.
1,615 users
Print PDF
Print any Webpage to PDF. No server or third-party processing. Uses built-in Firefox converter.
1,613 users
Siteimprove Accessibility Checker
Jumpstart your web accessibility efforts directly in Firefox. Is your web page accessible for everyone? Assess the accessibility of your web pages conveniently in Mozilla Firefox browser with the Siteimprove Accessibility Checker.
1,613 users
HackTools
Hacktools, is a web extension facilitating your web application penetration tests, it includes cheat sheets as well as all the tools used during a test such as XSS payloads, Reverse shells to test your web application.
1,604 users
ChroPath
ChroPath helps to generate and validate selectors like relative xpath, cssSelector etc with iframe support.
1,603 users
Website IP
Simple add-on that displays the current website IP address without a third party service. Converting the current tabs domain name to IPv4 & IPv6 via DNS lookup.
1,582 users
Xdebug-ext
Adds a simple button to inject a Xdebug cookie. Compatible with Firefox 57+ (Quantum). It is a port of "The easiest Xdebug" Addon by Nikita Nikitin, which is not compatible with WebExtensions.
1,573 users
GreenIT-Analysis
GreenIT-Analysis : Measure EcoIndex(www.ecoindex.fr) and check ecometer best practice (www.ecometer.org)
1,569 users
BugHerd: Visual Feedback & Bug Tracking Tool
Screenshots for the point and click bug tracker
1,560 users
Extension source viewer
View source code of Firefox add-ons and Chrome extensions (crx/nex/xpi) from addons.mozilla.org, the Chrome Webstore and elsewhere, with CRX Viewer (crxviewer).
1,560 users
(Animated) Nyan Cat Progress Bar for YouTube™
Nyan Cat Progress Bar for YouTube™ ~~ [Animated] ~~
1,553 users
Load Time
Adds an icon to the address bar to provide load time information of the current page.
1,545 users
Open Graph Preview
Shows approximately what users will see if this webpage is shared on websites that uses OG tags to display a preview. Let you detect if no Open Graph Tags are set on your webpage ! The shown preview is inspired from the Facebook one.
1,535 users
tweak: mock and modify HTTP requests
tweak allows you to mock and modify HTTP requests without leaving the browser
1,524 users
DevTools Media Panel
DevTools panel that displays technical details about media elements and webrtc on the current page; intended primarily for web developers to understand media playback issues on their sites, and for users to provide more informative bug reports.
1,524 users
HighlightAll
Automatically highlight and count all occurrences of a word by selecting it. Custom mode option provides multiple highlighting feature with customizable colors and can also display search markers beside the scrollbar.
1,517 users
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
1,499 users
CSS Reloader
CSS Reloader is an extension that allows you to reload all the CSS of any site without you have to reload the page itself.
1,481 users
WP Theme Detector and Plugins Detector
Detects the theme and plugins used in WordPress and display information about them. For sites using wordpress an icon will appear - right hand side of the address bar.
1,453 users
Live editor for CSS, Less & Sass - Magic CSS
Live preview of CSS/Less/Sass code changes. Auto-save file, autocomplete, convert Less/Sass to CSS, beautify, minify, CSS reloader, linter, ...
1,450 users
Open in MS Edge™ Browser
Open current page, link, or all tabs in the Microsoft Edge™ browser
1,442 users
