Strictly, I think this is a bug, or at least a possible wishlist item. I've linked it to Firefox's bug tracker. But since that has been around since 1999, don't expect any immediate action. I don't think many people now use MHT--even the officeupdate link it points you to is defunct.
Workaround: http://www.unmht.org/unmht/en_index.html ** Bug watch added: Mozilla Bugzilla #18764 https://bugzilla.mozilla.org/show_bug.cgi?id=18764 ** Also affects: firefox via https://bugzilla.mozilla.org/show_bug.cgi?id=18764 Importance: Unknown Status: Unknown -- "If you are seeing this message, this means your browser or editor doesn't support Web archive files" https://bugs.launchpad.net/bugs/240133 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