works fine for me, perhaps because I have never used Facebook to log into it.
AFTER EDIT: Replying to the kind reply to this comment, I am ALWAYS logged in to Facebook (with AdBlock Plus and Social Fixer and Ghostery activated, using Chrome), and I was surfing all over the Web completely normally while sites were reported to be redirecting. So maybe something different about my set-up protected me from the problems many other users observed today.
With Ghostery running, it should not even load anything from a Facebook domain. The (buggy) code to redirect people to facebook.com would no doubt be served fromFacebook themselves. Stopping that code from being served to your browser means they can't redirect.
I absolutely love Ghostery and other related tools.