Bugs in editor in Firefox 3.6

[bigb]

Hi, I´m experiencing several problems/bugs in Firefox 3.6.

1. When I insert a script, I don´t see any indication of its presence in editing mode and thus can´t delete it. Have to fiddle with code (not zimple).
2. The cursor doesn´t move when I press space. The space is inserted though but only when I type something.
3. The cursor is not in line with characters but a bit shifted up or down when writing headings.
4. When I insert a link without selecting some text, link without anchor text is inserted and thus isn´t visible. The URL should be set as the anchor text in this case.