Adding Firefox add-ons offline

If you want to add Firefox add-ons off line, then this is the easiest way.

• Download the add-on. This will be an xpi file
• Then Open Firefox -> Tools ->Add-ons (This is the way you usually follow)
• Now drag and drop your downloaded xpi file on to your Add-ons window.
• Restart Firefox
• Now you can experience your new Add-on.