Thank you for the new review!

> +Option to show only broken bookmarks, and not redirects.
> +Option to show only redirects.

It's already there. Please see the checkboxes on the results page. ;-)

> +Make it possible to remove folders, typically if the bookmark was the only one inside the folder and it was deleted, should be able to delete the folder too, without going to the Firefox Bookmarks view.

It's a good suggestion, I will consider this for a future feature update.

> It's a great improvement over the older version I tried, keep up the good work.

Thank you! :)