Comment 2 for bug 713495

Not sure if this is helpful or not but here is the output of the crash:

[INFO 01:02:47.092] Initializing Mono.Addins
Stacktrace:

  at (wrapper managed-to-native) LibProxy.ProxyFactory.px_proxy_factory_free (System.Runtime.InteropServices.HandleRef) <0x00004>
  at (wrapper managed-to-native) LibProxy.ProxyFactory.px_proxy_factory_free (System.Runtime.InteropServices.HandleRef) <0x00004>
  at LibProxy.ProxyFactory.Finalize () <0x00030>
  at (wrapper runtime-invoke) object.runtime_invoke_virtual_void__this__ (object,intptr,intptr,intptr) <0x00046>

Native stacktrace:

 mono() [0x80dbc6b]
 mono() [0x811370b]
 [0x81540c]
 /usr/lib/libproxy/0.3.1/modules/pacrunner_webkit.so(+0xbb1) [0x42b0bb1]
 /usr/lib/libproxy/0.3.1/modules/pacrunner_webkit.so(+0xbf2) [0x42b0bf2]
 /usr/lib/libproxy.so.0(+0x2741) [0x45db741]
 /usr/lib/libproxy.so.0(px_array_free+0x42) [0x45dab72]
 /usr/lib/libproxy.so.0(+0x4168) [0x45dd168]
 /usr/lib/libproxy.so.0(px_array_free+0x42) [0x45dab72]
 /usr/lib/libproxy.so.0(px_strdict_free+0x29) [0x45dd449]
 /usr/lib/libproxy.so.0(px_module_manager_free+0x30) [0x45db900]
 /usr/lib/libproxy.so.0(px_proxy_factory_free+0x31) [0x45dcf41]
 [0x5812fe4]
 [0x5812f61]
 [0x532c57]
 mono() [0x8117f41]
 mono() [0x820dd20]
 mono() [0x8118184]
 mono() [0x81b7e84]
 mono() [0x81ec43a]
 mono() [0x8216c72]
 /lib/libpthread.so.0(+0x5e99) [0xbcbe99]
 /lib/libc.so.6(clone+0x5e) [0x1e05ce]

Debug info from gdb:

Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.

=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Aborted (core dumped)