The best add-on if you want to stop getting distracted when you need to get work done. Very simple interface and super easy to use, have had no problems so far!

No doubt one of the most useful and important extensions. 10/10

The reason I get any work done in these days when there are so much distractions.

This app saves me from wasting hours on social media EVERY SINGLE DAY! :)

This addon has saved me from youtube. I used to sit at my computer for hours watching youtube but now i can use my computer again without getting distracted.

Although the settings examples at the developer's website are very helpful, it would be nice if the website's FAQ was expanded to explain each line of the settings, because I didn't find the settings easy to figure out. But this is partly because Leechblock is such a powerful, flexible program. Customer support is great too. I'm very glad indeed that I found this program; it's just what I needed.

Leechblock behaves unexpectedly.
I created a block specifically for YouTube but then I wanted to modify the times. The modification remains in the options but the add-on's behaviour was NOT changed. So I decided to delete the YT block and start over. BUT EVEN DELETION DIDN'T ERASE IT! YouTube is still blocked even though it has been erased! The result is I have to disable the add-on completely to watch YouTube. Frustrating.