Bootstrap - Responsive Helper
Show the Bootstrap grid class currently active (XS, SM, MD, LG, XL, XXL). Tested and work with the versions: 3, 4, 5 Not compatible versions: 4 Alpha 2
539 users
Markdown Editor for Firefox
Markdown Editor for Firefox also comes with one-click HTML conversion, file support and other discreet gems.
537 users
Simple Lorem Ipsum
This extension lets you insert Lorem Ipsum anywhere on your page with an edit mode to modify any content on your page.
537 users
ChromeLogger
Parses and displays messages from X-ChromeLogger-Data and X-ChromePHP-Data headers in DevTools Web Console facilitating server-side debugging via the Chrome Logger protocol ( https://craig.is/writing/chrome-logger/ ).
523 users
Le Git Graph - GitHub Git Graph
A browser extension that displays the git graph for any GitHub repository.
523 users
Headers
Take control of your web requests with the Headers extension for Firefox! This powerful tool allows you to effortlessly add, modify, or remove HTTP headers for any website you visit, giving you enhanced privacy, security, and customization options.
520 users
IP Geolocator
Shows detailed information about your IPv4 & IPv6 address and their location.
511 users
Seerobots
Seerobots let's you easily see the websites Meta-Robots (index/noindex and follow/nofollow) and X-Robots configuration...
509 users
Environment Marker
Provides a way to add a color indicator or marker (ribbon) on a web page depending on the URL.
507 users
Moesif Origin & CORS Changer
The most popular and feature rich CORS tool on Chrome (over 100K weekly active users) is rebuilt for Firefox with more features. This plugin allows you to send cross-domain requests. You can also override Request Origin and CORS headers.
505 users
Show site IP
Shows the site's IP address in the browser's address bar. Just hover your mouse over the icon to display it or click to copy.
504 users
Night Mode - Dark Theme
A universal dark theme. Night Mode is an extension that helps you quickly turn the screen (browser) to dark at night time. Toolbar button serves as an On & Off switch which enables you to easily and quickly turn the extension On or Off.
501 users
LanguageTool Website Spellcheck - LTWS
LanguageTool Website Spellcheck - LTWS is a convenient Firefox extension that allows you to check any text on web pages for spelling, grammar, and style issues using the powerful LanguageTool service.
497 users
Marker.io: Visual bug reporting
Visual bug reporting tool: save time & report visual issues in seconds with all data your devs need.
497 users
YouTube Miniplayer
Opens YouTube links in a draggable miniplayer on non-YouTube websites. Simple. Easy. No fuss.
496 users
pylote.io
Trouve des missions en te référençant sur une quinzaine de plateformes depuis une interface unique.
493 users
Clipboard History IO
The most secure way to effortlessly access, track, and manage your clipboard history.
493 users
