You have to pay to use the browser extension.

I would much rather just use the extension than be forced to install a program.

Best VPN providers!

Very good extensions. Proton AG really does make a habit of producing excellent products. A few crashes at times, but an excellent product.

Have spent about 15 min figuring out why no servers are available on Firefox extension > only to find out that they dont offer it for free on Firefox. You can give it a try on Android instead. Really useless and wasting time if you want to use it on Firefox. They should have at least mentioned it explicitly.

I might be inclined to pay for Proton Plus if I could test the VPN extension. But I'm not going to pay for something that I cannot test.

I see others have reported the same issue, but it is necessary to disable and reenable the extension almost every time you use Firefox. Otherwise, the browser will not load anything.

Great extension.
BUT, at every FF start, I cannot access any pages without switching the extension off and on again. Then it works perfectly.
Having profiles and Netshield would be a great addition. :).

I wouldn't waste my time installing this extension if it mentioned that it needs paying

Cannot use the extension without paying

Can't use without a subscription, unlike the OS-wide client. When it automatically reconnects upon browser reinitialisation, its GUI never loads, and it prevents all requests receiving responses.