Supported operating systems:
Google Android 2.0, Google Android 2.1, Google Android 2.2, Google Android 2.3, Google Android 3.0, Google Android 3.1, Google Android 3.2, Google Android 4.0, Google Android 4.1, Google Android 4.2, Google Android 4.3, Google Android 4.4, Google Android 5.x, Google Android 6.x, Google Android 7.x, Nokia Internet Tablet OS Maemo 5.0
Stack Overflow - Firefox Addon Search through StackOverflow's extensive range of programming questions for the highest voted responses tagged with your search term
Who is Hosting This? - Firefox Addon Who Is Hosting This.com is a popular webmaster tool that lets you discover who is hosting any web site, as well as publishing hosting reviews, our blog & more. The search plugin lets you query the site from your Firefox browser.
The tool provides a profile of the hosting company in question (where applicable), IP address and DNS information
Mobile Tools - Firefox Addon Mobile Tools - Tools for working with web pages in Firefox Mobile. Use tools like Page Info to view details about the current web page or use Page Source to view the actual web page source. A Firebug Console API is also supported for helping to debug web pages on mobile devices
AMF - Firefox Addon Apache Mobile Filter search engine helps mobile web developers to search mobile devices from user agent
CSS Refresh - Firefox Addon CSS Refresh - Firefox Addon - Adds "Refresh CSS" context menu item, accessible by right-clicking anywhere on the page. It will reload all the stylesheets on the page without refreshing the page itself. It also can be activated by using CTRL-SHIFT-R.
Especially useful for AJAX development