I notice some time ago that when I search for something on Yahoo the address bar info changes from yahoo.com to hsrdyahoo.com. When I first noticed it I scanned my computer with Malwarebytes (I also have Avast) and since no virus was found, I ignored it. I noticed it in my history today and did a search to try to discover what it means with no luck. People have theories, but no one (like Yahoo) seems to address it directly. Wondering if it is a Firefox thing, or a virus (as some seem to believe)? Also, when I scroll down the Yahoo homepage using Firefox, the screen turns black. I did an experiment and scrolled using Explorer and Chrome and I was able to read headlines as I scrolled. Seems only Firefox results in black screen.