★ 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
61 524 användare
Easily override the browser's User-Agent string
57 116 användare
RESTClient has been completely rewritten for compatible with Firefox 57. Some functions are still missing (OAuth & OAuth 2.0 authentication).
50 915 användare
DevTools for Redux with actions history, undo and replay.
47 619 användare
Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!
47 447 användare
Violentmonkey provides userscripts support for browsers. It's open source! https://github.com/violentmonkey/violentmonkey
47 266 användare
Manage and switch between multiple proxies quickly & easily.
45 688 användare
Quickly and easily switch between popular user-agent strings.
42 949 användare
WebRTC leaks your actual IP addresses from behind your VPN, by default.
42 055 användare
Cookie-Editor lets you efficiently create, edit and delete a cookie for the current tab. Perfect for developing, quickly testing or even manually managing your cookies for your privacy. Also supports Firefox for Android.
33 741 användare
Easy to use video and audio converter and muxer written in WebExtension built on top of the well-known FFmpeg converter
33 189 användare
Granska JSON-dokument i din webbläsare.
31 917 användare
30 296 användare
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.
29 954 användare
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
24 706 användare
A wrapper for Chengyin Liu's WhatFont tool
22 917 användare
Allows URI texts written in webpages to be loaded by double clicks.
22 363 användare
A tool for viewing SAML and WS-Federation messages sent through the browser during single sign-on and single logout.
21 942 användare
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.
21 454 användare
Manage your Polkadot accounts outside of dapps. Injects the accounts and allows signs transactions for a specific account.
21 194 användare
A reference for the codes to generate Emojis on popular sites like GitHub or Basecamp and Unicode characters for Twitter and Facebook. Search Emojis by name or view recently selected items. Emojis are automatically copied to the clipboard.
21 129 användare
An image extractor for sniffing, analyzing and batch downloading images from web page.
20 461 användare
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.
20 161 användare
A REST client for the rest of us
20 006 användare
Form autofill on steroids.
19 528 användare