Should Facebook have a unlike button?

[Michael Moore]

My name is Michael Moore I do have a facebook but one of the concerns is facebook does not have an unlike button. The person who made the like button has been recently married just 2 weeks ago..... Congrats. Anyway share you opinions and I will notify facebook of these concerns. Thanks

[chocolate]

Yes, Facebook has Unlike button Whenever you like a post. pic or something else then the "Like" button turns into a "Unlike" button so you can unlike it if you clicked somewhere mistakenly Hope that helps

[john]

French developer Thomas Moquet took matters into his own hands by creating a cute (albeit useless) Firefox extension that adds a dislike button to Facebook, letting users who have it installed mark things they don't like.

In order to make the tool work, Moquet had to use his own servers, which keep track of every item that's disliked as well as who clicked it. Any other Facebook users who have the extension installed can then see who disliked it right next to the usual like list.