I can open yahoo messenger. The I open the firefox browser. I can access yahoo actions, IM, updates, contacts etc. If, however; I open Yahoo mail in firefox, I get kicked off yahoo messenger and the yahoo block closes telling me that I am "logged into another device". I can use yahoo services in the browser but it's kind of clunky and I lose the sound message notices. When I get an IM in the browser I do not get the notice.