An excellent replacement for StayFocusd (which is available only for Chromium). I would have rated it 5 stars, but I gave just 4 because it's missing one feature I want: remove the count-down timer from the add-on icon, and display it only on the page.

Perfect blocking extension, good UI and customization, lightweight but functional.

I highly recommend it

Serves the purpose what it is meant for . Few instructions are quite long otherwise good product to enjoy the service

Hi! As I already said, great add on, I'm just editing my review so I can add a suggestion I thought about.

So, I like having the options to block the options page, the general options page, the add on page and that other page when I'm on certain blocks. Still, there's still one obvious way of getting around the block left, which is by going to Firefox's customize page, adding Leechblock back to the toolbar, right clicking it and choosing to remove it from my browser. So my suggestion is, if possible, the implementation of an option to block the customization page during certain blocks. It's really the only thing left for the add on to be flawless in terms of me not being able to get around it any time I feel like it.

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This is the best website blocker for firefox!

I am a huge fan of this app and would recommend it to anyone

This extension really helps me keep me accountable to myself, and to not let my lizard brain dictate too much of my habits.

Best addon to combat social media addiction. Even when you can override it with a few clicks it really helps to reduce it.

Great experience. Multiple block sets help in choosing different combinations.