Excellent functionality.
Just what I was looking for. I have literally 1000's of subs which was impossible to manage. Thank you my dude.

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Hi, I don't know why, but the new update of this extension makes me lose all my pre-subscribe lists and groups?
Could it be due to some bugs?

Can you show me how to backup and restore my settings?

I really don't require this add-on. I thought it was something else at first. However, I've read enough of your 1⭐ reviews to see that you have been attacked for supporting Ukraine in this illegal war that Russia has brought to a peace-loving, democratic nation. Anyone who sides with Putin is not a good person so, who cares if they delete your extension and give you more 1⭐ reviews than you deserve. I will attempt to make up for some of them by commenting your extension name in a few YouTube channels. You are doing a good thing. Thank you so much for supporting Ukraine. 🇺🇦FREEDOM & JUSTICE For Ukraine!!

A bit slow
Update: Hi, you were right. I was investigating in a private tab. An extension called "600% Sound Volume" was really messing with my Youtube subscriptions page with this extension on. While looking through their extension reviews, I also found that their extension apparently injects code or something. Anyways, yeah, I removed the extension, and everything is fine now. I increased the rating to 5 stars, as it does everything I need it to. Thanks