Great and simple add-on , however If I allowed a blocked site for a certain time , it doesn't auto block it after the countdown is finished , the page has to be refreshed to allow the addin to block it , would be really appreciate to fix this minor bug and thanks for the addin :)

Simple, easy to use, easy to understand, very effective, customizable website blocker.

Simple add on; does what it says. I like to have it on my work computer.

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.