*** This bug is a duplicate of bug 1659922 *** https://bugs.launchpad.net/bugs/1659922
Just my 2 cents: we had the same problem here after the Firefox 51.0.1 update (just one machine is affected anyway, the others updated with no problem). The error message is NOT related to python, but I get graphics errors like the ones seen in bug #1643200: [GFX1]: Failed 2 buffer db=0 dw=0 for 0, 0, 1920, 876 [GFX1]: Failed 2 buffer db=0 dw=0 for 0, 0, 1920, 876 [GFX1]: Failed 2 buffer db=0 dw=0 for 0, 0, 1920, 876 Anyway, excluding Firefox from Apparmor (as with the OP's first suggestion) works around the problem. My suspect is bad interaction with the driver for the videocard of that specific machine on which we have the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1659988 Title: Firefox apparmor profile: /usr/bin/python3: error while loading shared libraries: cannot apply additional memory protection after relocation: Permission denied To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1659988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs