View Page Source (Mobile)
Adds the ability to open the page source in a new tab via button (Desktop) or menu (Firefox for Android).
사용자 1,854명
Run JavaScript
Script injector for JavaScript and CSS!
사용자 1,850명
SEO Analysis & Website Review by WooRank
Instant SEO analysis and website reviews for SEO, mobile, usability and social media. The freshest data when and where you want it.
사용자 1,805명
Broken Link Checker
A SEO tool to find broken (404) and redirected (301, 307, 308) links in all frames
사용자 1,803명
Dark Night Mode
It is a universal night mode for the entire Internet. It uses a special algorithm to automatically change the colors of the websites you visit into dark mode so that you can browse without straining your eyes, especially at night.
사용자 1,793명
FireMonkey
Super Lightweight User Script and Style Manager
사용자 1,791명
WebSocket Weasel
A Handy Console / Client to Communicate with WebSocket Servers
사용자 1,790명
Feature Queries Manager
Manage and toggle CSS on a page behind a @supports Feature Query.
사용자 1,787명
YouTube Background Play
Keep YouTube videos playing when you switch tabs or minimize your browser. Perfect for listening to music or podcasts in the background.
사용자 1,784명
Clear Site Cookies
Clear the cookies of the current website, with cookie preview and precise cookie selection.
사용자 1,781명
Rotate that Video Player
Improve your video experience by effortlessly rotating your video clips by 90, 180, or 270 degrees.
사용자 1,774명
Laboratory (Content Security Policy / CSP Toolkit)
Because good website security shouldn't only be available to mad scientists! Laboratory is a WebExtension that helps you generate a Content Security Policy (CSP) header for your website.
사용자 1,760명
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.
사용자 1,758명
Enable Selection and Copy
Force enable text selection and copy. (mod by Gary) This is modded from another well-known addon and makes it function on local files also. Nothing else changed.
사용자 1,740명
Free Visio Viewer (Mac, Windows, Linux)
Open your Microsoft Visio files for free
사용자 1,737명
PixelZoomer
PixelZoomer takes a screenshot of the current website and provides various tools for pixel analysis. You can zoom into websites (up to 3200%), measure distances and pick colors with an eye dropper.
사용자 1,730명
Image saver
Save any images in page directly from context menu, this includes svg elements, css background images and direct child images.
사용자 1,727명
Asciidoctor.js Live Preview
Render AsciiDoc (.ad, .adoc, .asciidoc) as HTML inside Firefox!
사용자 1,715명
Xdebug-ext
Ajoute un simple bouton pour injecter un cookie Xdebug. Compatible avec Firefox 57+ (Quantum). Il s'agit d'un portage du module "The easiest Xdebug" par Nikita Nikitin, qui n'est pas compatible avec WebExtensions.
사용자 1,701명
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.
사용자 1,694명
APK Downloader
APK Downloader Direct download apps of the Google apps store without using Google Play.
사용자 1,689명
Word Counter
A lite tool for counting characters and words via context-menu
사용자 1,686명
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.
사용자 1,668명
JSON-formatter
Fast JSON formatting.
사용자 1,668명
Amadeus Digital DNA Extension
The Amadeus Digital DNA Extension provides end-users the ability to authenticate on some dedicated Amadeus web applications with a second factor.
사용자 1,653명