I haven't seen this, but I'm curious if it has something to do with your configuration. What I would suggest trying is working from a clean config. mv ~/.thunderbird ~/.thunderbird.backup Try it like that. If it starts correctly, then it is your config and you'll probably have to recreate your config to make it work. If it doesn't, then rename .thunderbird.config back to .thunderbird. No harm done. You can also install the latest version of thunderbird from Mozilla.org and install it in /opt or /usr/local or where ever you are comfortable. - Jason On 2015-01-10 23:31, Robert Nichols wrote: > On 01/10/2015 07:39 PM, Robert Nichols wrote: >> Anyone else seeing this? This is happening on a straight "Desktop" >> install >> of CentOS 6.6 fully updated. I have made no changes other than >> installing >> Thunderbird. Thunderbird will occasionally (10 to 20% of the time) >> fail to >> start, and the abrt report indicates a signal 11 (SIGSEGV). I don't >> see >> any other reports of this. Is no one using Thunderbird these days? >> >> Do abrt reports submitted from CentOS go anywhere useful these days? >> I >> saw some discussion a while back, but don't recall the results. Should >> I submit one? > > Another data point: If I install CentOS 6.6 from the distribution ISO > and > do _not_ do an update, Thunderbird seems to start reliably -- 100 > starts > and no failures. As soon as I install the current set of updates, it > starts > failing.