7-6-25: If you don't set your firewall ahead it will not update nor give any indication why. Dangerous addon changes ur ip w/out warning indicating it is infiltrated with hackers or it's just a bad program. If you delete it using taskmanager it will not revert back to your native networkd settings and you will not be able to surf. If you make changes to your browser addons it will make your isp block any connections to it. Good idea too back they can't make it work right.
11-3-2022: Pleasantly surprised that this outfit has VERY GOOD customer support. Answered my email immediatley with detailed answer.
Watch for dns leaks and test for them. Will change to ip you didn't ask for if other ips are filled up, so watch for this. Working on getting firewall settings for this addon, cuz I hate having to disable my fw to use it.
You cannot connect if firewall is active. Still no way to change port number assigned. Have not experienced any OBVIOUS hacks using this. It is the only free way to get into many websites that other "free" vpns cannot touch. I might actually pay for it if they can resolve the firewall and change of ip thing, but probably they cannot. Updated to 3 stars
Disables windows firewall allowing your system to be hacked. Dangerous add-on, not safe. Very unstable cannot keep connections due to hackers. Man in the middle attacks. Surely there is someone out there that can offer something better than this. Rarely use it anymore.