I've tested the official Ubuntu Firefox package and it's all the same. The problem occurs in it, too.
P.S. Concerning the unofficial package I use, it's for the smooth scaling of images option which is turned on in this package. This is the ppa: https://launchpad.net/~firefox-smooth-scaling/+archive/ppa -- [Firefox] when you right-click in Navigation bar, the "copy/cut" command are inactive https://bugs.launchpad.net/bugs/579799 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs