[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffe5566700 (LWP 19737)]
[New Thread 0x7fffe1590700 (LWP 19738)]
[New Thread 0x7fffd422b700 (LWP 19739)]
libpng warning: iCCP: known incorrect sRGB profile
libpng warning: iCCP: known incorrect sRGB profile
[New Thread 0x7fff8b7ff700 (LWP 19743)]
QIODevice::read (QFile, "/home/Andy/.cache/signon-ui/cookies/7.jar"): device not open
[New Thread 0x7fff8a5ff700 (LWP 19744)]

Thread 1 "signon-ui" received signal SIGSEGV, Segmentation fault.
0x00007ffff53d5b83 in JSC::JSLockHolder::JSLockHolder(JSC::VM&) ()
   from /usr/lib/libQt5WebKit.so.5
(gdb) bt
#0  0x00007ffff53d5b83 in JSC::JSLockHolder::JSLockHolder(JSC::VM&) ()
    at /usr/lib/libQt5WebKit.so.5
#1  0x00007fff88a1dc10 in JSCheckScriptSyntax () at /usr/lib/libjavascriptcoregtk-4.0.so.18
#2  0x00007fff897ebfb7 in  () at /usr/lib/libproxy/0.4.15/modules/pacrunner_webkit.so
#3  0x00007ffff2de605f in libproxy::pacrunner_extension::get(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, libproxy::url const&) ()
    at /usr/lib/libproxy.so.1
#4  0x00007ffff2ded889 in  () at /usr/lib/libproxy.so.1
#5  0x00007ffff2deec05 in  () at /usr/lib/libproxy.so.1
#6  0x00007ffff2def232 in px_proxy_factory_get_proxies () at /usr/lib/libproxy.so.1
#7  0x0000555555581ab5 in  ()
#8  0x0000555555581d10 in  ()
#9  0x00007ffff385198a in  () at /usr/lib/libQt5Network.so.5
#10 0x00007ffff3851e28 in QNetworkProxyFactory::proxyForQuery(QNetworkProxyQuery const&) ()
    at /usr/lib/libQt5Network.so.5
#11 0x00007ffff37d3f56 in  () at /usr/lib/libQt5Network.so.5
#12 0x00007ffff37f613d in  () at /usr/lib/libQt5Network.so.5
#13 0x00007ffff37f7dac in  () at /usr/lib/libQt5Network.so.5
#14 0x00007ffff37f7e95 in  () at /usr/lib/libQt5Network.so.5
#15 0x00007ffff38ab54a in  () at /usr/lib/libQt5Network.so.5
#16 0x00007ffff2549062 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#17 0x00007ffff469ffec in QApplicationPrivate::notify_helper(QObject*, QEvent*) ()
    at /usr/lib/libQt5Widgets.so.5
#18 0x00007ffff46a79c6 in QApplication::notify(QObject*, QEvent*) ()
    at /usr/lib/libQt5Widgets.so.5
#19 0x00007ffff2517cf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) ()
    at /usr/lib/libQt5Core.so.5
#20 0x00007ffff251a956 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#21 0x00007ffff2574c54 in  () at /usr/lib/libQt5Core.so.5
#22 0x00007ffff3050368 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#23 0x00007ffff30505b1 in  () at /usr/lib/libglib-2.0.so.0
#24 0x00007ffff305063e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#25 0x00007ffff2574241 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#26 0x00007fffe43bf482 in  () at /usr/lib/libQt5XcbQpa.so.5
#27 0x00007ffff251632b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
    at /usr/lib/libQt5Core.so.5
#28 0x00007ffff251f728 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#29 0x0000555555562dc2 in  ()
#30 0x00007ffff1b5a9a7 in __libc_start_main () at /usr/lib/libc.so.6
#31 0x000055555556307a in  ()