My yahoo homepage address when using Firefox browser now says www.m.yahoo.com. Is this normal? Whats the m?

Your browser has been hijacked by Yahoo. They are testing a new layout of the homepage by putting a cookie on your system that automatically redirects you. When you delete your cookies, it defaults to the old layout until they replace the cookie on your system. You probably haven't seen it in Internet Explorer because they haven't put the cookie into it yet. If you want to keep the old layout, there are two different methods to do it, but I've only tried the first one. This is for Internet Explorer. I'm not sure how to do it Firefox. Method #1 In Internet Explorer 7, click Tools, Internet Options, Privacy tab, Sites. In the address of website box, type yahoo.com then click Block. You can unblock it later by clicking the remove button. The only problem with this is that you cannot log into any yahoo services(like yahoo answers) when the cookies are blocked. Method #2 In Internet Explorer 7, click Tools, Internet Options, Security tab, Restricted Sites, Sites. In the 'add this website to the zone' box, type the address of the new homepage. Then click add. I haven't been able to try this so I'm not sure if there are any problems with it. Also, look for the Feedback link at the bottom of the page and tell yahoo that you don't like the new layout and you don't want to have to use these workarounds