Ajax.BeginForm does not work in firefox

When I use Ajax.BeginForm with updateTargetId, it works fine in IE - replacing the html inside updateTargetId's tag. The same thing redirects the page to form's action. Does Ajax.BeginForm work in firefox?

From stackoverflow

• Yes it absolutely does. You probably have either poorly formed HTML or a javascript error that is preventing it from working properly.

  If you still can't find it, post the rendered markup and we can look at it.

  DaDa : Yeah, it must be some unclosed tag for sure. it happens to me often