How can I disconnect facebook from Windows 8?

Try Going into Settings your phone Settings and you Should Find The Option From there and Should be able To Turn it off
http://uk.answers.yahoo.com/question/index?qid=20121226103203AAN57Y4

How to Disconnect My Facebook Account From My Yahoo?

Facebook is a social networking site that keeps you up to date with friends, family and fans. If you have a Yahoo! account, it may be more convenient for you to connect to Facebook through Yahoo! a... Read More »
http://www.ehow.co.uk/how_8514355_disconnect-facebook-account-yahoo.html

Quick disconnects are a special type of adaptors used for older propane tanks to make them more accessible. One end of a quick disconnect adaptor threads directly into your propane tank's opening. ... Read More »
http://www.ehow.co.uk/how_7838138_disconnect-propane-tank-quick-disconnect.html

I have firefox as do most of my friends! This problem happens to most people I think. I would think it to be a problem with facebook servers and codes as oppose to yours, mine, my friends and lots ... Read More »
http://uk.answers.yahoo.com/question/index?qid=20080904023959AArw62X

just right click "My computer" option and right click and then disable the local Connection option, right click and disable
http://uk.answers.yahoo.com/question/index?qid=20121206014135AAm4ePO