Works for me on FF60 for Mac.

To the other people who gave this 1 star for not autofilling their data into forms... that isn't what it's for. Firefox has a simple built-in autocomplete function, and this addon removes a little snippet of code that bad web designers add to every single form field to block this simple autocomplete from working. With this extension installed, you still have to type information in the first time, but then dropdown entries should start appearing below similar form fields in future.

Would be 5 stars if there was a whitelist function, for sites (or better, exact pages) that have a legitimate reason to turn off autocomplete.