/usr/lib/aarch64-linux-gnu/webkit2gtk-4.0/WebKitNetworkProcess:11:WTF::PthreadState::didExit:WTF::threadDidExit:WTF::ThreadIdentifierData::destruct:__nptl_deallocate_tsd:start_thread

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding webkit2gtk. This problem was most recently seen with package version 2.12.5-0ubuntu0.16.04.1, the problem page at https://errors.ubuntu.com/problem/d9472f3193aae450495961239d01c9ce4fa8ccc0 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.