Google Adsense Checker Requires Restart
Google Adsense Checker can display the Adsense earnings on statusbar, it is similar to adsense notifier.
Quickly and easily switch between popular user-agent strings.
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.
Set custom User-Agent string. Also available for Firefox on Android.
Copy Pure Text Requires Restart
Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.
Fast JSON viewer - highlights, shows items count/size, handles large files
window.crypto.signText replacement plus enhancements
Go full screen with one click on the button.
XPath Checker Requires Restart
An interactive editor for XPath expressions.
NewScrollbars (aka NoiaScrollbars) Requires Restart
The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".
Print the current page you see.
HostAdmin Requires Restart
Switch domain-ip mapping by a SIMPLE CLICK. In addition, DNS would be refreshed whenever your change host by HostAdmin or Manually.
Clear Console Requires Restart Uitgesoek
One click to clear your cache, cookies, history, html5/local storage, http logins, all of them or restart your browser with/without notifications.
An indicator showing HTTP/2 and SPDY support in the address bar.
SERPTrends SEO Extension Requires Restart
SEO Extension SERPTrends for Firefox is a lightweight SEO tool which shows dynamics for the search results within the search page: whether the website moved up, down in the SERP, just appeared (is "new") or hasn't changed its position.
Easily compare JSON objects. Highlight the differences using colours in a tree structure representing the diff.
Source code can be found at https://github.com/rafspiny/jsondiff/
Instead of completely blocking canvas fingerprinting, Canvas Defender add-on creates a unique and persistent noise that hides your real canvas fingerprint. This add-on protects you while browsing both in normal and private mode.