Thank you James for your marvelous brain. I just discovered this app 2 days ago and I can't believe how much it stop me from getting distracted on Youtube, Amazon.com, and just wasting time.
You're the BEST!!!

MEGA customizable blocker, but also very accessible. I've benefited a lot from this extension

Admittedly I've never gotten the overrides feature to work, but I guess that's a blessing in its own right...

(Developer's blog seems pretty cool too)

Very helpful in preventing me to open youtube unconsciously

Amazing extension. Just what I needed

bloquea bien, sirve para no recaer en visitas no deseadas en webs

This app is great.

Super configurable, developer actively fixes any bugs...

Muito boa extensão para definir o tempo limite de sites. Ela é excelente para que consigamos nos livrar de sites que estão tomando muito o nosso tempo, como as redes sociais.

Amazing add-on!

This Add-on is simply amazing!
It has helped improve my productivity immensely. Its very easy to use and also quite effective.
I use it to block all social media from my laptop during working hours.

Really helps me for blocking certain sites that I really want to quit.

Browsing can be so distracting and procrastinative, yet the makers of browsers seem not to consider this aspect at all. LeechBlock fixes this in a good way. There are extensive configuration options. I would like to see more possibilities to combine them: for example, I would like to delay pages and when they are eventually shown still apply a gray filter or blur. Even so, the add-on is great and I am very grateful to the developers.