Extension has been extremely reliable for me over the years but over the past couple weeks the experience has really gone downhill, the VPN doesn't auto-connect on browser start, it loses connection very often and does not connect to a new server, and it often fails, outright saying I need to re-install the extension, which I have done a couple times now, to no avail. Not sure what they are cooking but I can't say I'd recommend the extension right, I will be sure to update my rating should this be a temporary spell.

EDIT: works flawlessly on Debian, all my issues it seems were because of Windows, adjusted my review to reflect my current experience with the product

Idіоts complaining that the service whose infrastructure costs millions of dollars isn't offered for free. Have you intellectual amoebas heard about saying "If something's free, you are the product" ? Is 10€/$ a month such a burden?

Sono un cliente pagante. Installato e fatto funzionare su varie macchine sempre come add on di Firefox senza alcun problema. L'unica cosa che succede di tanto in tanto e' che gli IP che usa sono stati messi in black list precedentemente, e quindi devi collegarti su altro Paese e riaccedere al sito.

I like it. I do see a lot of 1 star reviews where people say they are annoyed it's not free. That seems unfair criticism. Potentially Proton is misleading people into thinking it's free. That is unfair. But overall, I've had a good experience with Proton VPN. Suits my needs for a global VPN.