|I get this, in Firefox and other browsers, and usually when I am browsing Ebay with my speakers on.|
PROBLEM SOLVED, I think; It's a darned sidebar advertisement in Ebay (possibly other sites too!) to do with the University of Northampton who have a honey bee as their logo, or are something to do with research into bees.
PLEASE dont change settings or re-install windows etc... it's perfectly safe though annoying and intrusive. I just turn my speakers down!