I guess you could just remove those two files, or simply clear the Firefox browser cache. Probably they are some javascripts with suspicious content.
I don't think this qualifies as a bug though ;) Please let us know if the warnings go away after clearing the cache. You could also take a look in those files with some plain text editor (like vi), maybe you can figure out what site did they came from and avoid visiting that site in the future. ** Changed in: clamav (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/884240 Title: I'm having the same issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/884240/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs