On Sat, 24 Jan 2015 16:47:23 +0100, Karol Blazewicz wrote: > 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. Thank you Karol, while you still were writing this mail, I already did it and you're right. I didn't noticed that there was an instance of Firefox not correctly closed. Killall solved the problem. Regards, Ralf