The quickest and easiest way to install the xpi file:
* Launch Firefox (version 2 or 3)
* Find the .xpi file you downloaded
* Drag the .xpi file into the Firefox browser window.
* Firefox will prompt you to install the .xpi, Click "Install Now"
* After the .xpi file is installed, you'll need to restart Firefox
Installing a xpi file
The quickest and easiest way to install the xpi file:
* Launch Firefox (version 2 or 3)
* Find the .xpi file you downloaded
* Drag the .xpi file into the Firefox browser window.
* Firefox will prompt you to install the .xpi, Click "Install Now"
* After the .xpi file is installed, you'll need to restart Firefox