*** This bug is a duplicate of bug 1627808 *** https://bugs.launchpad.net/bugs/1627808
With Firefox 53.0 and 17.04 this is still happening. Only solution was to disable the "Ubuntu Modifications" extension. This is really unfortunate, as the default behavior for all new Ubuntu installations is for multi-processing to be disabled, which makes browsing slower and less responsive. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1627290 Title: Firefox 49+ multiprocess windows feature (e10s) is disabled by ubufox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubufox/+bug/1627290/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs