Google Chrome is the only browser I can successfully upload vids with, but only one by one, and only if they have been transferred with Miro Converter. That is a bind, and I wonder if that is how it is, or not, or if that situation is going to be improved? [...]
The background goes all the way down on Google Chrome, [...] but not on Mozilla Firefox, even in safe mode.
Can you try creating a new Firefox profile to narrow things down? I haven't seen any reports of trouble uploading supported video files, and this might have to do with the multi–file* vs. browser uploader
* the multi–file uploader requires HTML5 support, which Firefox 14.0.1 supports.
The problem is that Google Chrome cuts off the very top bit, and often there are several inches of grey at the top of my stats and there doesn't seem to be a way to resolve that.
What version of Google Chrome are you using? (Just to make sure.)
Can you take an uncropped screenshot of how this appears, and upload the image to your Media Library? Thanks!