Jazz-MIDI
MIDI support for browsers
3,200 users
SVG Gobbler
Download and optimize icons, logos, and vector SVGs from websites. SVG Gobbler hunts down the SVG content in your current tab, highlights unique attributes about it and gives you the option to download or copy to clipboard.
3,167 users
Clockwork
php dev tools integrated to your browser
3,158 users
FB unseen
Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.
3,153 users
Referer Control
Control the HTTP Referer on a per-site basis.
3,149 users
webhint
Check for best practices and common errors with your site's accessibility, speed, security and more.
3,125 users
WebXR API Emulator
Emulate WebXR devices on your browser
3,062 users
Page Ruler
Measure page elements size in pixel with an easy-to-use ruler.
3,061 users
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
3,014 users
Katalon Recorder | Automated Selenium Tests Genera
Selenium IDE alternative to record and export Selenium scripts. Provides reports & screenshots. Fast & open-sourced.
3,002 users
ReCaptcha Solver
Verify Google ReCaptcha V2 automatically with :2Captcha, DeathByCaptcha, ImageTyperz, RuCaptcha, Anti-Captcha, BestCaptchaSolver and EndCaptcha Without API or TOKEN key it won't work!!
2,991 users
Wizdler
Parses the WSDL files and generates SOAP messages for you.
2,931 users
Merge Windows
Merges the tabs from multiple windows together into one window. Extension won't show context menu item when there aren't more than one window of the same type to merge together. Private windows will only merge with private windows not normal.
2,867 users
LiveReload - Web extension
Web extension based version of LiveReload. Supports Firefox 57 (Firefox Quantum)
2,851 users
JSON-formatter
Fast JSON formatting.
2,822 users
Yandex Wordstat Assistant
Расширение, позволяющее значительно ускорить сбор фраз с помощью сервиса подбора слов Яндекс (wordstat)
2,806 users
VisBug
Open source browser design tools
2,779 users
Custom Style Script
Add custom JavaScript codes or styles to any page.
2,730 users
dataslayer
Debug and test tag management (Google Tag Manager, Adobe Launch / DTM, Tealium) and analytics (Google Analytics, Adobe Analytics) implementations from within Developer Tools.
2,665 users
Feature Queries Manager
Manage and toggle CSS on a page behind a @supports Feature Query.
2,650 users
Season Pass Pass
Travel back in time and pull rewards from any previous season pass in destiny 2
2,619 users
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.
2,570 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.
2,559 users
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.
2,544 users
CopyTables
Select table cells, rows and columns with your mouse or from a context menu. Copy as rich text, HTML, CSV and TSV
2,542 users