Manually Installing Extensions in Firefox from Mozilla Update

1. On the Extension's download page, click on the Install Now link.
2. A download dialog box will appear. Click Save to Disk and save the Extension's .xpi file to your local disk (usually your Desktop).
3. Once the download completes, find the Extension's .xpi file; from the Firefox File menu, select Open File..., and open the saved Extension's .xpi file.
4. A Software Installation dialog will appear. Select Install Now to start the installation.
5. The Extension Manager will appear, and the extension will be displayed. Restart Firefox to complete the installation. The Firefox Extension has now been installed.

Manually Installing Themes in Firefox from Mozilla Update

1. On the Theme's download page, click on the Install Now link.
2. A download dialog box will appear. Click Save to Disk and save the Theme's .jar file to your local disk (usually your Desktop).
3. Once the download completes, from the Firefox Tools menu, select Themes. Find the saved Theme's .jar file.
4. Drag and drop the Theme's .jar file to the Themes list. A Confirm dialog will appear. Select Okay to start the installation.
5. The Theme will be displayed in the Theme Manager.
6. Select the Theme, and restart Firefox to use that Theme.