Description of problem:
I wanted to upgrade a GNOME Shell extension.

Version-Release number of selected component:
webkitgtk4-2.9.92-1.fc23

Additional info:
reporter:       libreport-2.6.2
backtrace_rating: 4
cmdline:        /usr/libexec/webkit2gtk-4.0/WebKitPluginProcess 23 /usr/lib64/mozilla/plugins/libgnome-shell-browser-plugin.so
crash_function: WebKit::NPN_InvokeDefault
executable:     /usr/libexec/webkit2gtk-4.0/WebKitPluginProcess
global_pid:     8117
kernel:         4.2.1-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 WebKit::NPN_InvokeDefault at /usr/src/debug/webkitgtk-2.9.92/Source/WebKit2/WebProcess/Plugins/Netscape/NetscapeBrowserFuncs.cpp:702
 #1 on_shell_signal at browser-plugin.c:298
 #2 ffi_call_unix64 at ../src/x86/unix64.S:76
 #3 ffi_call at ../src/x86/ffi64.c:525
 #4 g_cclosure_marshal_generic at gclosure.c:1481
 #9 on_signal_received at gdbusproxy.c:917
 #10 emit_signal_instance_in_idle_cb at gdbusconnection.c:3701
 #15 WTF::RunLoop::run at /usr/src/debug/webkitgtk-2.9.92/Source/WTF/wtf/glib/RunLoopGLib.cpp:67
 #16 WebKit::ChildProcessMain<WebKit::PluginProcess, WebKit::PluginProcessMain> at /usr/src/debug/webkitgtk-2.9.92/Source/WebKit2/Shared/unix/ChildProcessMain.h:61
 #18 _start

Potential duplicate: bug 1225280