Opera on Wednesday announced that it would add a free VPN service to the latest version of its browser. Virtual private networks add an extra level of security for Web surfers. Companies use them to provide secure communications for employees remotely accessing office systems, and consumers use them to block unwanted snooping on their online activity. “Now, you don’t have to download VPN extensions or pay for VPN subscriptions to access blocked websites and to shield your browsing when on public WiFi,” senior VP Krystian Kolondra said.