Rated 5 out of 5 stars

by Séamas on Oct. 8, 2008 ·

Always nice to have a wider choice of buttons... though I don't use many, the ones I do use I need extensions for.

Oberfeldwebel,

The instructions for installing in Thunderbird are right above the download link.

If you just click on the download link like you would any link, it will attempt to automatically install to Firefox.

Here's more detailed instructions if you need it:

Right-click the "download now" link (RIGHT-click).

Save the .xpi file to a convenient location.

Open Thunderbird.

Go to "tools" > "add-ons."

In the add-ons window, click the "install" button.

In the file window which pops up, navigate to the directory where you saved the file and select the file. Click "open" or "ok."

Click the "install now" button in the window that pops up.

After it installs, click the "restart now" button.

Alternatively, save the file to your desktop. Open up "tools" > "add-ons" and drag the file from your desktop into the add-ons window. Click "install now" and restart as normal.