It would allow you to downvote comments that aren't "useful." Facebook has tested a dislike or downvote button before, but it never stuck. Will this be different? Mark Zuckerberg has vowed to make ...

For the past six years, on every national Election Day, the social-networking behemoth has pushed out a tool—a high-profile button that proclaims “I’m Voting” or “I’m a Voter ...

The Facebook down vote button is now available for use by more people than ever before. Facebook first introduced the down vote button back in February. While the rest of the world had to make do ...