Found the problem! Compiling Firefox with support for pango (--enable-pango) fixes the problem. Apparently, pango support is only enabled for some localized versions of Firefox in Ubuntu.
I know this is a cheap workaround but it solves the problem. Without pango support, the DPI setting has no effect. -- Firefox's layout.css.dpi (about:config) does nothing https://bugs.launchpad.net/bugs/116900 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs