ipFood Requires Restart Featured
Simulate the use of a series of proxy changing at each new connection.
Emoji Keyboard Featured
A free extension of the web tools https://emojikeyboard.org. It helps input emoji in the browser with an extensive search functionality to facilitate getting emoji by keywords.
Fast JSON viewer - highlights, shows items count/size, handles large files
window.crypto.signText replacement plus enhancements
Quick Locale Switcher Requires Restart
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
Take Screenshots, Screen Grab with Online Upload Requires Restart
Capture screen grabs aka screen shots and instantly upload online to ImageBam for easy online sharing and storage.
FireMath Requires Restart
FireMath is an equation editor based on MathML, the mathematical markup language.
Find examples, FAQ, installation instructions and a discussion board at
Speed up scientific scripting! Improve your science!
Creates a text-only version of almost any web page. Great for accessibility, SEO and printing.
Copy Pure Text Requires Restart
Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.
Render AsciiDoc (.ad, .adoc, .asciidoc) as HTML inside Firefox!
iMacros for Firefox Featured
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!
Provides a quick way of changing the HTTP Accept-Language header so you can view and test websites with a different locale.
DevTools for Redux with actions history, undo and replay.
AInspector Sidebar Requires Restart
AInspector Sidebar evaluates the accessibility compliance of web pages based on WCAG 2.0 Level A and AA requirements using OpenAjax Alliance rulesets. It organizes the evaluation results by Rule Categories and WCAG Guidelines.
WCAG Contrast checker Requires Restart
Checks for compliance with the contrast levels, brightness and shine in the color combination of foreground and background of textual content based on the requirements of WCAG 1 and WCAG 2.
Display card numbers in Trello.
Fangs Screen Reader Emulator Requires Restart
Fangs renders a text version of a web page similar to how a screen reader would read it. The ambition is to help developers understand how an assistive device would present a website and thereby increase chances of finding accessibility issues early.
Seerobots Requires Restart
Seerobots let's you easily see the websites Meta-Robots (index/noindex and follow/nofollow) and X-Robots configuration...
Blocks the ”seen” feature of the facebook messenger, and your friends will no longer be able to see if you read their messages.