Facebook rolls out trial of 'dislike' button for downvoting comments

Trial among users in Australia and New Zealand allows people to give comments an up or down vote

Facebook is trialling new technology on some Australian and New Zealand users which allows people to give comments an "up" or "down" vote.

A Facebook spokeswoman said the trial was in the early test stages and no decision had been made on expanding it to the global community of 2.2 billion users. A decision would be made after the company had gauged whether users found the new tool useful and productive, she said.