VeePN works well and securely for me on Firefox, with Ublock Origin disabled. Running Ublock Origin along side of VeePN causes a DNS leak, revealing my ISP. I don't have this same problem using Chromium-based browsers (Edge, Dissenter, etc.), where I can run VeePN and Ublock Origin together. Not sure why this is, only that it's happening. This same issue occurs with Ublock Origin and other VPN extensions on Firefox, so it's not exclusive to VeePN. Hopefully, Ublock Origin and/or VeePN will come up with a fix for this, so that both extensions can be used together.