Drag this link to your browser's bookmarks toolbar:
☹ I Don't Like




1. Go to idontlike.info

2. Drag the link "☹ I Don't Like" to your bookmarks toolbar:
Facebook dislike bookmarklet 1

3. Click on a comment field on Facebook:
Facebook dislike bookmarklet 2

4. Click on the Facebook dislike bookmarklet "☹ I Don't Like":
Facebook dislike bookmarklet 3

5. Press Enter on the comment field:
Facebook dislike bookmarklet 4

6. This is how it looks like:
Facebook dislike bookmarklet 5