Smooth Scrolling in Thunderbird

[for Mozilla Thunderbird users]
Firefox users have an option to enable smooth scrolling in the options menu, but what about Thunderbird? Is that part of the back-end Mozilla code, that they share? Why yes it is! -)

To enable Smooth Scrolling in Mozilla Thunderbird, add the following line to your user.js:
user_pref(“general.smoothScroll”, true);

Or, if you have the AboutConfig extension, go to Tools -> about:config.
Right-click on any preference line, and select New -> Boolean.
Preference name: general.smoothScroll
Value: true