Thunderbird freezes at startup if lightning is active. Sometimes is works but mostly it doesn't. This only happens if I use a remote calendar. See the screenshot. Reproducible: Always
Created attachment 242763 [details] Screenshot
reopen with emerge --info thunderbird
Created attachment 243073 [details] emerge info
emerge info attached
If you would please test with a clean profile, I am unable to duplicate the report, system is almost identifical.
Please test and get back to us.