How to Install Firefox Themes Offline
If you download some theme to your hard disk you’ll find its a .jar file. When you open it using Firefox, Firefox doesn’t initiate the theme installation procedure.
So, how? No, worry solution is simple.
Go to this page Install Firefox Theme From Local Disk (Offline).
Save the web page to your hard disk.
Now when ever you want to install a theme, load this page locally and direct it to the .jar file on your hard disk.
It’s simple as that!
