[Owncloud] Uploads not possible with older browser

[Dayo]

Hi

I've noticed the Upload icon is greyed out in Firefox 3.5.16, making 
uploading files impossible. On my other system I use Firefox 8 and the 
Upload icon is clickable and uploads work just fine.  So it's not 
user-related but browser-related, I guess. I had a similar issue with 
plone, and it turned out to be ff3 choking on "bad" CSS, that ff7 
rendered just fine. Maybe it's the same issue here.

Thanks

Dayo