Add-ons Toolbar Button is a Thunderbird extension that adds a toolbar button to open the Add-ons dialog. You must add the button to your toolbar by right-clicking the toolbar, selecting "customize", and dragging this new button to the toolbar or menu bar.
How to Install in Thunderbird:
1. Right-click the link below and choose "Save Link As..." to download and save the file to your hard disk.
2. In Mozilla Thunderbird, open Add-ons from the Tools menu.
3. Click the Install button, and locate/select the file you downloaded and click "OK".
· Mozilla Thunderbird