Note: Republishing from The FF Extension Guru’s Blog

One of the neat features of Thunderbird is the ability to customize the client with Extensions, Themes and Plug-Ins. But sometimes there are problems a theme does something funky to your browser. Or may be an extension goes haywire and gets corrupted. There are so many possibilities of what could be the problem. If you have a lot of extensions installed, it is hassle to list them all.

Whenever anyone posts on Go Firefox! a more advanced problem they are having the first thing I recommend they do is install the InfoLister extension. In a matter of seconds the extensions generates a report with loads of information:

* The build/version of Thunderbird and your OS
* Complete list and a total number of extensions (including enabled & disabled)
* Listing of all the themes installed and which one is currently in use
* Simplified listing (compared to about:plugins) of the all installed plug-ins

With this information it is very easy for me to see if the user is running an outdated extensions, a problematic theme, a troublesome (Yahoo!) or missing plug-in. Below is the results when I run InfoLister on this profile…

Last updated: Thu, 09 Apr 2009 21:53:03 GMT
User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b4pre) Gecko/20090406 Shredder/3.0b3pre

Extensions (enabled: 8, disabled: 0):

Themes (1):

Plugins (12):

  • Adobe Acrobat
  • Google Update
  • iTunes Application Detector
  • Java(TM) Platform SE 6 U12
  • Java(TM) Platform SE 6 U13
  • QuickTime Plug-in 7.6
  • RealNetworks Rhapsody Player Engine
  • RealPlayer Version Plugin
  • RealPlayer(tm) G2 LiveConnect-Enabled Plug-In (32-bit)
  • Shockwave Flash
  • Shockwave for Director
  • Windows Presentation Foundation