Facebook is recently celebrated its 10th anniversary. But the long begged dislike button is available only for messenger app as a sticker form. Some post like death, divorce needs a dislike button, unfortunately people are using like button even for dissatisfied posts.
However you can implement dislike button in your Facebook account by adding this extension on your Google Chrome browser. Dislike on Facebook is a Google Chrome extension which lets you dislike each post on Facebook. In order to add dislike button to you Facebook account simply download the extension and install it. Now open your Facebook account, here you will notice the dislike button on each post.
Unfortunately this facility is available only for Google Chrome and you dislike appears only to those who use Google Chrome and have the extension installed. For those who want a Dislike on Facebook simply install this extension.