I've got the same problem and for this reason our web application supports all browsers but not firefox 3
Yes, i confim this bug. we have the same problem. Look here and try it in FF2 and FF3. http://www.eo.cz/test.php
duplicate of https://bugzilla.mozilla.org/show_bug.cgi?id=452332 ?
Firefox 3.0 is now EOL, please try latest version of Firefox and feel free to open if it reproducible on latest build * http://getfirefox.com for support * https://support.mozilla.org/questions/new