View mobile or desktop versions of sites, by impersonating other browsers' useragent headers.
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
Copy As Plain Text Requires Restart
Removes formatting from copied text.
Pretty-prints JSON content in the browser for easy, unobtrusive viewing.
Console² Requires Restart
Fonts for Mozilla's MathML engine.
Darkens the background of the page
Network Preferences add-on for Firefox for Android
Webpage Snapshot to Scrapbook Requires Restart
Create snapshots of webpages and upload them to a digital scrapbook for collection and to share with friends. A new way to bookmark useful web information!
Crop the area of the webpage that you need, upload and then annotate the image and save.
enlarging the navigation links on the pages
DOM Inspector Plus! [dm] Requires Restart
Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.
This addon adds some Android Debug Bridge access to Firefox. It requires access to the adb/adb.exe executable from the Android SDK.
This addon fills --ALL-- the text inputable fields on the web page with dummy text(Random Text) For Web Dewelopers and Programmers
Author : Fire360Boy
Email : Fire360Boy@gmail.com
Bigger Text Requires Restart Featured
Make fonts larger and more readable
MuLTiFlow Requires Restart
A simple Rich Text Editor that support Maths and Graphics editing
Cookie preferences and prompter for Firefox for Android
Delete all trackers.