I use it all the time for Netflix. I always find a server that works!

work great on all browsers incl Firefox. easy to use, connect/disconnect, and allows split tunneling

Really good to add site-granularity in Proton VPN

It work mostly well, but it will have issues reconnecting if the computer goes to sleep or if Firefox serivce get interutped in some way. The extentions does not seem to be listed on Proton support pages, so not sure either where to report these issues or find forums to discuss issues.

The extension is not working at all at the time I am writing a review so I am forced to use the desktop app again which cuts my internet speed to 1/4th. Review will change if this is fixed. Edit:they fixed it

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