Thanks for your comments! Sure, we will check if that possible to separate VPN for private and regular windows. If Firefox allows us to do so then no problem. However, with all recent updates, extension has less and less power to do anything to help user :( We struggle permission to recover proxy state after browser restart but Firefox does not give us such... only after first user click but any web page remaining from previous session could make unprotected request.

As for free gateways - you would not believe but we do NOT limit those gateways in any way. They are even twice stronger than paid ones because we know that there will be thousands of free users. So we did our best to make them as fast as paid ones... however, the amount of users are way too much (each free server uses 4tb and some even 6tb of traffic per month)