>>>>> "RB" == Roland Bauerschmidt <rb@debian.org> writes:
RB> ** CRITICAL **: file
RB> ../../../../../embedding/browser/gtk/src/gtkmozembed.cpp: line
RB> 298 (void gtk_moz_embed_init(GtkMozEmbed *)): assertion
RB> `retval == TRUE' failed.
FWIW, this is exactly the same error that I got.