It help me with my addiction of YouTube, I do not use Instagram or Facebook, but this plugin help me to combat my addiction. Highly recommended, especially useful during work hours.
Thank you, James Anderson!

Very helpful tool to prevent doom-scrolling and wasted time.

Very complete add-on. Actually blocks subdomains properly so i can stop myself from getting absorbed into watching shorts with youtube's intrusive recommendations but still usw the site. Great blocking options, customizable, and gotta appreciate that it's free.

Unintuitive interface. Either it's not possible to configure it to block a website indefinitely (as opposed to a fixed number of hours) or the UI is so unintuitive that I couldn't find that setting even after looking for several minutes.

Extremely simple to use, but very effective, really improved my discipline

amazing add-on for helping me focus; I use the delay-page option so I'm forced to evaluate whether i want to waste time on youtube for 60 seconds before it opens.
I recommend taking the time to understand the functions because it can block pages in a lot of ways depending on what works for you.

Once again, this addon is a life saver, especially for someone like me who gets easily distracted while online. Love the wildcard option. For example: I have blocked google news on week days. However, if I search anything on google search and then click on the news option, I am able to see news stories related to my search. Using this "*google.com/search?sca_esv=" as a wildcard blocks it perfectly. Maybe a bit extreme, but much needed to get away from the internet. Thanks again.

Generally a very good idea to boost productivity with minimalist UI in place, but it's also easy to bypass as extensions can be disabled/removed in Firefox reverting their settings.

It took a few minutes to install, I use the 'quick start' from the documentation page on the website.

It is working for me right now, succesfully banned the Reddit front page, other subreddits are working. Has other nice features but I don't want them right now.

I hate this plugin, but also, I love it. It forces me to get out of my procrastination loop and work. I hate working, but I have to work anyway, and thankful for being able to earn my keep. So yeah, it's a love and hate relationship, but for the best.

If you are having trouble managing time, and have thousands of tabs from those certain 'important' websites, and replies/comments that you have to write to correct all the wrongs, cause no one should be wrong on the Internet, then have this please.

You may not thank me later, or ever. But at least your clients/family will have you.

Does what it says and is foss what more could you ask for. The UI looks like its daunting but its easy to set up.