pinchy is a simple set of preferences distributed as an add-on for Firefox and Thunderbird. Easily enable pinch-zoom gestures, shift+pinch out for full screen toggle, shift+pinch-in for close tab. Shift+3-finger-swipe to switch tabs.
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