On Sat, Jan 24, 2015 at 4:35 PM, Ralf Mardorf <ralf.mardorf@xxxxxxxxxxxxxx> wrote: > Somebody else seeing the following? > > [rocketmouse@archlinux ~]$ firefox > > (process:29590): GLib-CRITICAL **: g_slice_set_config: assertion > 'sys_page_size == 0' failed I've been getting things like (process:20609): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed all the time (when e.g. I open a tab) for ages, but firefox still works. Disable all plugins, try a fresh profile.