Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
55 042 utilisateurs
Redux DevTools
DevTools for Redux with actions history, undo and replay.
54 163 utilisateurs
Ruffle
Remet Flash à sa juste place, sur Internet.
49 004 utilisateurs
Nimbus Screen Capture: Screenshot, Edit, Annotate
★ Used by Several Million users on different platforms ★ 1) Screen capture web pages 2) Selected regions 3) Whole browser window 4) Slack upload Edit screenshots. Save images as local files or Google Drive. Tools for Annotation. Upload and share
47 892 utilisateurs
Selenium IDE
Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests.
44 359 utilisateurs
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
41 252 utilisateurs
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.
36 930 utilisateurs
Stylish - Custom themes for any website
Restylez le web avec Stylish, le gestionnaire de styles.
36 676 utilisateurs
JavaScript-Java Bridge
A replacement for the Java Plugin so Java Applets without graphics continue to work on browsers that no longer support NPAPI plugins. Java's LiveConnect API is emulated — data & method calls can be exchanged, and Java can manipulate the webpage DOM.
34 534 utilisateurs
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
34 324 utilisateurs
RESTClient, a debugger for RESTful web services.
RESTClient has been completely rewritten for compatible with Firefox 57. Some functions are still missing (OAuth & OAuth 2.0 authentication).
33 624 utilisateurs
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
29 936 utilisateurs
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
25 774 utilisateurs
JSONView
Afficher les documents JSON dans le navigateur.
25 454 utilisateurs
CORS Everywhere
A firefox addon allowing the user to enable CORS everywhere by altering http responses. Report issues to the repository, with enough information to reproduce the problem: https://github.com/spenibus/cors-everywhere-firefox-addon/issues
25 377 utilisateurs
Media Converter and Muxer - Audio Tools
Easy to use video and audio converter and muxer written in WebExtension built on top of the well-known FFmpeg converter
25 204 utilisateurs
SAML-tracer
A tool for viewing SAML and WS-Federation messages sent through the browser during single sign-on and single logout.
23 253 utilisateurs
Colorpick Eyedropper
A simple eye-dropper & color-picker tool allowing you to select color values from webpages. You will need to enable the add-on bar Firefox menu->Options->Add-on Bar OR View->Toolbars->Add-on Bar Then refresh the page.
22 558 utilisateurs
ImageAssistant Batch Image Downloader
An image extractor for sniffing, analyzing and batch downloading images from web page.
22 134 utilisateurs
Font Finder (revived)
An easy-to-use font inspector to get CSS styles of the selected element
20 997 utilisateurs
WAVE Accessibility Extension
Evaluate web accessibility within the Firefox browser. When activated, the WAVE extension injects icons and indicators into your page to give feedback about accessibility and to facilitate manual evaluation.
20 890 utilisateurs
Xdebug Helper for Firefox
This extension is very useful for PHP developers that are using PHP tools with Xdebug support like PHPStorm, Eclipse with PDT, Netbeans and MacGDBp or any other Xdebug compatible profiling tool like KCacheGrind, WinCacheGrind or Webgrind.
20 754 utilisateurs
ModHeader
Add and modify the HTTP request headers and response headers. Use ModHeader to: - Add / modify request and response headers - Add / modify cookies - Multi-profile support - Filtering based on URL, tab, or window - Export and share profiles
19 737 utilisateurs
Autofill
A form filler, form recovery, text snippets, and automation tool all in one.
18 761 utilisateurs
SeoQuake SEO extension
SEOquake est un plug-in gratuit pour navigateurs qui vous fournit les principales métriques de référencement d'une page ainsi que d'autres outils utiles tels que l'Audit de référencement et bien d'autres.
17 658 utilisateurs