The bug was in the My Home settings pages Anno -verified by me that it did not work with Firefox.

And do you have a fix?

Nope, I have no idea why IE would work fine and FireFox is broken -it doesn't make sense unless FireFox was stripping something out of the HTTP header that the script needed to determine if the form was valid...

In instant_markup.php

the entry for $ubbt_lang['ENTERURL2']

Near the end, you'll see:

title \"UBBCentral Homepage.\"";

change to:

title \\\"UBBCentral Homepage.\\\"";

Fixed the UBB Buttons for me.

interesting - thanks for the bugfix. Mine says something a little different, we must be using an older file and haven't gotten the bug.

Doesn't work for me... I get this error message:

D:/JPFitness/threads/languages/english/instant_markup.php is not writeable. Please fix the permissions on this file and try again.

Where do I find those permissions to even fix them?

This one is fixed in 6.5.3