[Bug 1160569]

[Xtimox]

Same issue here on Fedora 20:

$ uname -a
Linux timo-usersys 3.12.6-300.fc20.x86_64 #1 SMP Mon Dec 23 16:44:31 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

$ firefox -v

(process:17784): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
Mozilla Firefox 26.0

$ cat /etc/redhat-release 
Fedora release 20 (Heisenbug)

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https://bugs.launchpad.net/bugs/1160569

Title:
  [regression] GLib-CRITICAL **: g_slice_set_config: assertion
  `sys_page_size == 0' failed

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