Sorry there is no email address for Firefox support. This forum is what Mozilla offers for Firefox support. As far as filing a Bug report, this is the Bugzilla website: https://bugzilla.mozilla.org/ Here is the Bug writing guidelines page: https://developer.mozilla.org/en/Bug_writing_guidelines But before filing a Bug report, why not discuss your problem with Firefox here to verify that what you are seeing is really a Bug, and not an easily solved misunderstanding about Firefox.