Excellent extension! I removed a star because of a bug I just found: it seems that if you use "blank page" instead of "default page" in the "how to block" section, the site is not actually blocked. Happy to give the star back when this is corrected.
Edit: I was not able to reproduce the bug, so I'm giving back the fifth star. :-)
Thanks for the review. I just tested the Blank Page option and it works fine for me. I haven't received any other reports of a problem here. I recommend you post it as an issue on GitHub (see LB support page) so I can investigate further.
