not perfect (options UI seems draft and there isn't a "nuclear" option to close all blacklisted sites by the hours) but does its job. lucky since it seems the only valid addon for Firefox, no there isn't choice :)
i just hope that the background engine doesn't eats any CPU to normal navigation.
love the name "Monastery".. i'd love to see a monk shape when showing the lovely pre-delay page :)

Downloaded it for the second time and it's working perfectly. I like it very much. Thank you.

Since I installed Monastery, I've spent so much less time on the bad parts of Reddit, and spent more time being productive! It's easily customizable. The only problem I've had is that I had to update my system clock to 2018 and back for it to notice my change in time from 1 minute to 45... but it works great after that. :)

Does exactly what I need it to. I noticed, though, that the Delay Page settings warn me when I set the delay to 0.1 minutes, saying it needs to be at least 0.5 minutes, but then it works anyway.

С тех пор как перешел на работу на дому, появилась необходимость сдерживать отвлекающие факторы, в частности соблазн посещать любимые сайты. Эта штука прекрасно справилась с этой проблемой.