The chrome tab groups were what I missed the most when I switched, so I’m happy with the change. It’s a little jankier feeling as in chrome it’s harder to drag a tab out of the group, while in Firefox if you move a tab to the end it’s hard to get it to stay in the group.
It would also be nice if any of it was themeable, but themeability in Firefox is a whole other problem.
https://www.idquantique.com/random-number-generation/products/quantis-qrng-pcie/
Edit: the actual way they do it is from things like sensor noise, it’s practically impossible to predict the random noise on a temperature sensor for example
Edit2: oh wait it’s literally just an led and cmos sensor lol (well i guess there’s a lot of processing etc but still)