Amazing! Extremely useful for a procrastinator. Blacklisting and Whitelisting is precisely what I was looking for.

I love the feature that it does not allow me to be distracted rather makes a pop up with a button to "give up".
I love it

非常好用的时间管理工具

i mean it's cool i just also wish the sync was better like everyone else

Awesome mobile/firefox extension sync. Simple and effective.

This is a great idea. I get so easily distracted that I closed my Facebook account to be more productive, yet I still get distracted. This should really help.

After some updates, the addon works like a charm. You now have the option to choose between a white- or blacklist, whichever suits you more. During that time, you are forced to stay on specified sites or your tree will die.
Thanks to the devs for this awesome addon.

I was pretty skeptical about the app at first, but this has really improved my focusing. I have ADHD so I am constantly doing things I shouldn't and this extension reminds me that I have a job to finish.