I am using squeeze. Iceweasel often crashes when I try to open a new page;or when I click on something within a page.
I then used an xterm to open iceweasel, so that I could see what messages occurred during a crash,

Here is one sample crash data:

edhe@hebrews:~/Documents$ iceweasel

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)' failed

(firefox-bin:29257): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWindow'

(firefox-bin:29257): Gtk-CRITICAL **: gtk_window_get_type_hint: assertion `GTK_IS_WINDOW (window)' failed

(firefox-bin:29257): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)' failed

(firefox-bin:29257): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWindow'

(firefox-bin:29257): Gtk-CRITICAL **: gtk_window_get_decorated: assertion `GTK_IS_WINDOW (window)' failed

(firefox-bin:29257): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWidget'
(firefox-bin:29257): Gtk-CRITICAL **: gtk_widget_get_toplevel: assertion `GTK_IS_WIDGET (widget)' failed

(firefox-bin:29257): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(firefox-bin:29257): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)' failed

(firefox-bin:29257): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWindow'

(firefox-bin:29257): Gtk-CRITICAL **: gtk_window_get_type_hint: assertion `GTK_IS_WINDOW (window)' failed

(firefox-bin:29257): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)' failed

(firefox-bin:29257): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWindow'

(firefox-bin:29257): Gtk-CRITICAL **: gtk_window_get_decorated: assertion `GTK_IS_WINDOW (window)' failed

(firefox-bin:29257): GLib-GObject-WARNING **: invalid unclassed pointer in cast to `GtkWidget'

(firefox-bin:29257): Gtk-CRITICAL **: gtk_widget_get_toplevel: assertion `GTK_IS_WIDGET (widget)' failed

(firefox-bin:29257): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead
(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29257): Gdk-WARNING **: XID collision, trouble ahead

(firefox-bin:29
Segmentation fault

Which Debian release are you running and which version of Iceweasel?

Try updating to 8.0 from backports or the mozilla.debian.net repo.

You can also try creating a new profile or running it in Safe-Mode to see if an extension or theme is the cause.

I am using the stable release; and iceweasel is 3.5.16

« I am running Debian and I want to install version »


If I choose either '3.6' or 'release', for version, I get:



You need to add the following entry in /etc/apt/sources.list or a new file in /etc/apt/sources.list.d/:

deb http: etc.....

Sorry, this version is not available.

8.0 is the current release version of Iceweasel in the mozilla.debian.net repo.

Just follow the directions on the repos website.