I can't reproduce this in Ubuntu 12.10. I'm inclined to think this was actually a bug in the font (DejaVu Sans Mono) and not in Firefox itself
** Changed in: firefox (Ubuntu) Status: In Progress => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/51554 Title: Unicode combining characters don't combine properly. To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/51554/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs