Serious Problem: How reliable are VPN extensions like MullVad VPN for Firefox?

@Average_Joe Have you tried Mullvad with Split Tunnelling? You can leave it on system wide at all times and just exclude all the apps you don’t want to go through. That could be all apps except your one browser. You get the best VPN on the market, it’s simple to set up and you have full control, is there a reason this wouldn’t work for you?