I have a HTC Vive and lately when browsing various sites including engadget & Tom's Hardware I notice SteamVR keeps opening. Turns out some dickhead advertisers are trying to force VR ads on me. The problem is I work with lots of Firefox tabs open across 3 screens and when you try to close SteamVR it also wants to close Firefox. The solution is pretty simple, just disable VR in Firefox:
- Type about:config in the address bar
- Type VR into the search box at the top of the config page
- Double click both "dom.vr.enabled" and "dom.vr.openvr.enabled" so the right side value column says "false"
Done. It's a bit of a pain if you do any browser based VR work but you can always re-enable it while working and turn it off again afterwards.