I’m on HTC Vive, Firefox last version, SteamVR last version, and it seems that the triggers on the controllers doesn’t works anymore.
I’ve the issue on my current project, and on the doc’ playground too: https://www.babylonjs-playground.com/index.html#0Y75BA#35 (clicking the Add More button doesn’t do anything).
In the end of december, trigger works fine on my project, but not now. Maybe it’s related to a SteamVR update?
 same assessment with A-Frame A-Painter: can’t paint…[/edit]