Exactly what I was looking for, and with all the options I need

Great for homeschoolers. Keeps kids off their favorite websites until school is over.

Great add-on, lots of options and easy to set up. LOVE IT!

At the moment of writing this review (29-01-2018) it's the only reliable option available to block sites in Firefox Quantum.

Great Addon! Easy to handle and helped me lose the habit of checking pointless news every few minutes when working on challenging tasks.

This is the ONLY extension you need if you want to kick bad internet habits, quit porn, or just reclaim the time spent online. Can not thank the developers enough. Thanks Leechblock!

I honestly recommend this addon to everybody I know. I have a pretty bad internet addiction, and leechblock has helped so much. I finally feel like I'm in control of my social media use, instead of letting it control my life!

This add-on helps me waste way less time on the web.
It has a good number of features to specify on which day and at what time to block sites.
Very useful of anyone suffering from procrastination. :D

Great addon to prevent compulsively wasting time

I was so glad to find out this extension existed. I used it to block Facebook, which has significantly improved my quality of life. It's highly customisable too, so no complaints.

I love this extension, it helps keep me focused and more in control of my digital life.

Thanks! Works well.

This has done the trick. I'm like 50 more productive :)

totally blocks all websites.

Simple and effective, as it should be.
It will save you a lot of time!
Highly recommended

great app

Works great! Finally found what I was looking for.

Fully controllable website filter with timer. I use it to prevent myself from wasting time on FB, news channells, etc, during productive time. Emanuele