When I view my site in Firefox 4, if I tab to the tinyMCE editor, it right aligns the cursor, when I begin typing it adds an empty line to the top and then the typing begins left-aligned on the next line. This doesn't happen in IE8 and I'm not sure if it happens in an earlier version of FF because I'm not sure how to install simultaneous versions of the same program. Has anyone else encountered this? Is this specific to the buggy FF4? Is there a way to hack around it? Thanks.
You can install several instances of Firefox on any OS. To identify the problem i suggest you install the "old" FF 3.6 in another location as the other.