So handy. Thanks!

Very good. Does exactly what I needed from addon like this.
Default to blocking time-consuming sites, unlock them for (x) time.

Почему вкладка просто не закрывается, а зачем то остается с писаниной?

Works nicely, but doesn't allow you to block specific subdomains. Makes it near useless for people who want to be able to access music.youtube.com but not www.youtube.com, for example.

Add option to close blocked page automatically.

can't block subdomains

Yeah, it works at preventing you from opening a page that's in your block list when it's enabled. But it's a major flaw that if you pause it and keep scrolling on the same page it will never even tell you when the time's up.
Likewise, pausing it doesn't automatically reload the pages blocked which is a minor annoyance.
Also, a form of importing/exporting block lists would be nice.

Great simplistic blocker with the only caveat being that having a nuclear option to make it harder to disable would be helpful as well

I made a Mozilla account just so I could rate this 5 stars. Absolutely amazing extension. It's fool proof, so easy to use with a very simple UI. Not saying I couldn't deal with a CLI but this is just a great extension for everyone. Stop the social media addiction! Start being productive before the real world hits!

An excellent contrast to LeechBlock. Not as fully featured, but significantly more lightweight, simple, and helpful for casual users looking to curb their site addictions. If you want detailed blocking triggers that block on specific days and/or with specific keywords, then you're better off using LeechBlock. If you just want to curb how often you frequent larger sites in general, this is for you.

I think its the cleanest site blocking extension I found so far, really easy to add and remove sites, has timed pausing, and its perfect for when I have trouble procrastinating and need nudging back to work.