deciding for version 4 due to this line: # i3 config file (v4)

(process:25892): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

(firefox:25892): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised

(firefox:25892): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised

(firefox:25892): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised

(firefox:25892): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised
NOTE: child process received `Goodbye', closing down

(process:27585): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

(process:29876): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised

(process:29876): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised

(process:29876): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::display after class was initialised

(process:29876): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::default-icon after class was initialised
[i3bar/src/xcb.c:838] ERROR: X11 connection was closed unexpectedly - maybe your X server terminated / crashed?
urxvt: X connection to ':0' broken, unable to recover, exiting.
[libi3] libi3/font.c Using X font -misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1
Exiting due to signal.
firefox: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.
