[[xubz]]

Originally Posted by gxsaurav

Can't they just use one extension engine

The Extensions work.. IF They're updated..

For those who're Blabbing about Extensions, Here's a Small Tutorial..

1. Search for the Extension you want, But instead of Clicking the "Install Now" Button, Right click it and Select "Save Link As" and Save the .xpi File to your HD.
   
2. The XPI File is basically just a ZIP File with a Different Extension.., So Extract it with WinRAR.
   
3. Open the Folder in Which you've Extracted, and Open the "Install.rdf" with your Fav. Text Editor.
   
4. You can See its a XML File.. Edit the Part that Says
   

   <em:minVersion>1.0.*</em:minVersion>
   <em:maxVersion>1.5.0.*</em:maxVersion>

   and Make it
   

   <em:minVersion>1.0.*</em:minVersion>
   <em:maxVersion>3.0.0.*</em:maxVersion>

5. Save the File, and Repack the Files as a ZIP File and Rename the Extension to XPI
   
6. Open Firefox, Open Addons (Tools->Addons)
   
7. Drag and Drop the XPI File into the Addon Box..
   
8. Profit!!!

Now you can Install any Extension..

Do not try Installing Themes that Way.. Many Things have changed since the 1.5 version.. so you'll have a Ugly Looking One..