Simple, and functional

Great tool! Thank's for providing it for free!

Very versatile, so helpful. Good job, keep working!

Switched to this from the ImpulseBlocker addon. I can set times when I want to be productive and disable social media websites during that times, also set times for sleep and for weekends, that's pretty easy to configure. Overriding the self-set rules is hard and that is important. ImpulseBlocker had this "disable for 5 minutes" button and I used that way too much. Synchronization over your firefox sync account seems to work for me as well, though it is still in beta. This helps me a lot during this Covid19-induced home-office.

This tool has been the biggest help. Clearly, the author of this tool understands the doctrine of total depravity. :-)

Edit: lol nvm i didnt realize there was a website with a FAQ, it's crazy how powerful this is
---original: these things exist!---
I wish there was a whitelist feature, because sometimes wikipedia and a bunch of other sites i can't list all of are useful for work and other times they're a distraction.
Also, it can't kick me off of a site that im on, it only blocks it when it refreshes. Tumblr is an endless scroll site and if i run out of time it doesn't kick me off until i manually refresh it

Me writing this review is a sign that it is working. I would definitely be on social media if it weren't for this add-on. I used the Stayfocusd extention for Chrome previously and this add-on is a perfect replacement.

Simple to use, has a number of powerful options, and a pleasant but unobtrusive default "sorry, can't visit" screen. Works great!

So great. Can't live without it now.

I have been using this for years, and I was delighted when the author took the time to rewrite the extension to work with newer Firefox versions, and with Chromium browsers too! Well done! It also works with Firefox Sync (go its settings to enable that). The settings are a bit hard to understand at first, but there many more settings than anything else that I've tried.

The only thing that it lacks is that the settings page is not suitable for small screens on Firefox for Android.

This is the first browser extension that I have ever donated to.