Couldn't believe this wasn't on here yet. Just shared with @playswithfood, so figured I'd see if it was here.
This is a great app that you can set the days of the week that it's active, time ranges, and allowances for seeing sites.
One painful thing is if you block Facebook it blocks the authentication window for other sites too. There's a workaround to allow certain URL's on a site, but since enabling "Nuclear Mode" I haven't been able to get into change my settings…
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