Here's the log. You see, there are these CRITICAL assertions and a SIGSEGV at the end. But the WARNINGs were present for quite some time for now, they were benign.
** Attachment added: "dwb_log.txt" https://bugs.launchpad.net/ubuntu/+source/dwb/+bug/1550493/+attachment/4609777/+files/dwb_log.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550493 Title: Segmentation fault on startup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dwb/+bug/1550493/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs