User-Agent Switcher
Easily override the browser's User-Agent string
61 718 iseqdacen
Allow Right-Click
Re-enable the possibility to use the context menu on sites that overrides it
49 828 iseqdacen
Cookie Quick Manager
An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported.
49 041 iseqdacen
Redux DevTools
DevTools for Redux with actions history, undo and replay.
47 650 iseqdacen
Assinatura Digital no Navegador
Realize Assinaturas Digitais no navegador.
39 614 iseqdacen
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
36 127 iseqdacen
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.
35 005 iseqdacen
WhatFont
A wrapper for Chengyin Liu's WhatFont tool
33 284 iseqdacen
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.
32 321 iseqdacen
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.
28 056 iseqdacen
cookies.txt
Exports all cookies to a Netscape HTTP Cookie File, as used by curl, wget, and youtube-dl, among others.
27 979 iseqdacen
Disable WebRTC
WebRTC leaks your actual IP addresses from behind your VPN, by default.
24 717 iseqdacen
Stylish - Custom themes for any website
Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.
24 655 iseqdacen
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
22 103 iseqdacen
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.
21 758 iseqdacen
Proxy SwitchyOmega
Manage and switch between multiple proxies quickly & easily.
20 755 iseqdacen
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.
20 690 iseqdacen
SAML-tracer
A tool for viewing SAML and WS-Federation messages sent through the browser during single sign-on and single logout.
20 147 iseqdacen
ImageAssistant Batch Image Downloader
An image extractor for sniffing, analyzing and batch downloading images from web page.
18 977 iseqdacen
Font Finder (revived)
An easy-to-use font inspector to get CSS styles of the selected element
18 897 iseqdacen
JSONView
View JSON documents in the browser.
18 440 iseqdacen
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
18 338 iseqdacen
User-Agent Switcher
Quickly and easily switch between popular user-agent strings.
16 416 iseqdacen
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.
15 667 iseqdacen
SeoQuake SEO extension
Accelerate your SEO efforts on the fly. SEOquake is a free plugin for browsers that provides you with key SEO metrics for a specific page, along with other useful tools such as SEO Audit and many others.
14 760 iseqdacen