This seems to be a css issue in your application. Can you get the version of firefox from the user?
He says Firefox 3.0
I can't reproduce this issue on my firefox 3.0.15
I checked my app for unclosed divs, extra margins; validated css etc.
Maybe there are some incompatibility between Caja and my css?
Is there more complete list of limitations than at
http://developer.yahoo.com/yap/guide/what-...css-limitations (for example, that link doesn't tell that line-height is not supported in Small View)?
P.S. I wanted to sleep badly and made so many mistakes in my first post. Usually my English is not so bad :-D