Thunderbird:Help Documentation:Obsolete:Mouse Shortcuts
From MozillaWiki
Thunderbird Mouse Shortcuts
This is a list of the most common mouse shortcuts in Thunderbird. The shortcuts are for Windows, but most of the Thunderbird shortcuts should work in Linux too.
Note: This list is not yet completed. Any help in pointing out missing shortcuts is greatly appreciated.
Command | Shortcut |
Decrease Text Size | Ctrl+Scroll Up |
Increase Text Size | Ctrl+Scroll Down |
New Formatted (HTML) Message | Shift+[Write] |
Scroll line by line | Shift+Scroll |