I confirmed this on my system, so I'm changing the status to reflect that. It appears to be related to images based on the testing I've done. I will look upstream to see if this has been reported yet.
** Changed in: firefox (Ubuntu) Status: New => Confirmed -- Vertical bar when zoomed in on larger fonts https://bugs.launchpad.net/bugs/531839 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