Possible test case as posted by C4llumD on bug 116873 [1] (for KDE):
While Thunderbird is running: kcontrol -> Appearances & Themes -> Style
On the Style tab select Widget Style "Keramik" -> Configure
Check/uncheck either of the boxes, OK -> Apply and Thunderbird will crash within a couple of seconds as KDE applies the changes.
[1] https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/116873
Possible test case as posted by C4llumD on bug 116873 [1] (for KDE):
While Thunderbird is running:
kcontrol -> Appearances & Themes -> Style
On the Style tab select Widget Style "Keramik" -> Configure
Check/uncheck either of the boxes, OK -> Apply and Thunderbird will crash within a couple of seconds as KDE applies the changes.
[1] https:/ /bugs.launchpad .net/ubuntu/ +source/ thunderbird/ +bug/116873