Gostaria de um modo reverso no tunelamento dividido, pois preciso do VPN para apenas alguns sites.

Fora isso, muito bom.

Unstable connection from time to time

yet to test it, wait for the 2nd part of the review.

Works nice if you have a paid subscription. Though, would be wonderful to implement reverse version of the split-tunneling, when only sites specified are routed through the VPN.

E.g. if I'm ok with revealing my ip to most of the sites I visit, or I already route all the home network traffic through a local Proton server, but I want to completely hide my location from selected few sites. For them I'd like Firefox to automatically route the connection through a secure-core network. Currently it is only available when you manually connect and disconnect the extension as needed, and I often forget to do so.

Otherwise, a very useful extension

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. :).

add kill switch function!!!

Loses connection after a few minutes

Unfortunately quite frequent reconnections, visible on the popup, which I quickly turned off.
The super-fast connection at browser start or after standby or hibernation should be emphasized positively in any case. Clearly better than the Windows app by a large margin.
If you need Killswitch, you have to use the app for the operating system, the browser extension does not have that.
Split tunneling also works very well: Now I don't always have to switch browsers for my online banking page, for example.

Would be nice to see what protocol is being used.