Hmm, is the icon in Yahoo's web page, or on Firefox's main toolbar? '''''Yahoo page''''' - I can't think of a reason that this would work differently. If you were in the process of drafting a message and left it open, maybe you ended up going back to that point? '''''Firefox Email icon''''' - The only email icon that comes built in to Firefox is to email a link to a web page. If that's the one you're using, then you will get a new message -- hopefully with the address of the page you wanted to share in the body of the message. By the way, Yahoo has a toolbar with links to many of its services. Not sure whether this would be helpful or would make it more complicated, but if you want to try that, you can visit this page: https://us.toolbar.yahoo.com/