It does not work.
Also, there are no instructions.
Not even a description.

Found this by googling, though the link was /android/ – installed it on Windows, and it works! Great!

It would be nice to be able to have a limit on the # (or number of pages) of comments. Or you may be waiting for a long, LONG time to able to print or save the comments. I’m still waiting for the page to finish loading on a video right now. None of the comments are showing, not even the first few.