EDIT: I report a bug below, which the creator fixed on the same day of me writing this review, as well as adding the additional suggested feature. I am extremely happy with this!

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This is exactly what I have spent ages looking for, thank you so much for creating it! There is one problem: I use Firefox on my laptop, which runs Windows. When I try to open a site on the blocklist, it takes over a minute to load (and usually shows a blank white page) before the intervention shows up and asks me how long I intend to spend on this site.

I assume this is a bug. I think it would be a nice addition if it does make you wait for some time before asking you. But I'd like to know how long I am waiting ;)

It would be wonderful if you can fix this. If the bug is not happening on your end and you would like more information about it, I am happy to discuss further details; my email is [redacted].

Again, thank you so much for making this wonderful extension!