Firefox 21 won't support when the AppArmor profile is in enforce mode. It denies access to create and write into ~/.cache/mozilla/firefox/.
Adding the following rules fixes the problem: owner @{HOME}/.cache/mozilla/{,firefox/} rw, owner @{HOME}/.cache/mozilla/firefox/** rw,
Firefox 21 won't support when the AppArmor profile is in enforce mode. mozilla/ firefox/ .
It denies access to create and write into ~/.cache/
Adding the following rules fixes the problem: /.cache/ mozilla/ {,firefox/ } rw, /.cache/ mozilla/ firefox/ ** rw,
owner @{HOME}
owner @{HOME}