I updated webkitgtk-3.0-0 from 2.4.6-1 to 2.4.6-2 and this problem disappeared.
But, FYI, the other dwb/webkit problem (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=761492) is still there. Thanks. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org