On Mon, 8 Jun 2015 14:08:17 -0500, Francis Gerund wrote: >GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' >failed Don't worry about that, I get it too. [rocketmouse@archlinux ~]$ firefox --help (process:14001): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed [snip]