Edit: Might be worth noting that logging out of FB "fixed" this for me. (But I had to go back and re-open all those tabs.)
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.
I absolutely love Ghostery and other related tools.
EDIT: By the timestamp on your comment, the issue appears to have been fixed, anyway.