You could report it Kate, but on the grounds that we aren't having the same problem, then it would seem that something in your set-up is different, not the browser itself at fault. What add-ons do you have?
Also - check for updates on any of the add-ons.
Think about any software you might be using that affects Internet activities - give us a list.
Somewhere on your system, there's something 'different' and a bit of digging might find out what it is.