I use current version of Firefox on a Windows XP desktop machine. I normally use Yahoo as my home page and Firefox as my browser. Starting a few weeks ago, when I clicked on a link on the main Yahoo page, I would get about one second of whatever it was I wanted to read or see then another screen that included "adap.tv" in the very long URL would replace it. Starting yesterday, this program began to override the security settings in Firefox that told it to NOT change the home page and I now get about one second of Yahoo before it switches to a page with "adap.tv" in the "URL". I have reloaded Firefox without success.