I have a mac and the last few days when I try to sign out I get a failed msg saying that my browser seems to have blocked 3rd party cookies and that I have to change my browser?  I have never had this problem before and I do not know anything about changing my browser.  Please help.  I saw this same question asked but there was no answer.

Hi bzzyone,

You will need to contact the Windows Live Technical Support Team (Live ID) for this.

To contact them, just follow the steps below.

1. Go to https://support.live.com/default.aspx?productkey=wlid
2. Click on any of topics on the left panel, then wait for the page to load completely.
3. Click "Get more help" on the lower right corner of the page, then click on "Get support."

Don’t forget to provide an alternate e-mail address for them to contact you with.

Thanks!