I think there is some conflict with AppArmor because set the AppArmor profile of the Firefox in complain mode Firefox works well, but set it in enforced mode it cannot write into 'owner @{HOME}/.{firefox,mozilla}' folder. My total paragraph for 'owner @{HOME}/.{firefox,mozilla}':
# per-user firefox configuration owner @{HOME}/.{firefox,mozilla}/ rw, owner @{HOME}/.{firefox,mozilla}/** rw, owner @{HOME}/.{firefox,mozilla}/**/*.{db,parentlock,sqlite}* k, owner @{HOME}/.{firefox,mozilla}/plugins/** rm, owner @{HOME}/.{firefox,mozilla}/**/plugins/** rm, owner @{HOME}/.gnome2/firefox*-bin-* rw, With the pre-51.0.1+build2-0ubuntu0.16.04.1 FF it worked fine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1659922 Title: Firefox 51.0.1 после обновления в Ubuntu 16.04 x32 не отображает содержимое сайтов To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1659922/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs