Media.wmf.dxva.d3d11.enabled |work| -

The setting media.wmf.dxva.d3d11.enabled is a (found in about:config ).

It controls whether Firefox can use D3D11 hardware-accelerated video decoding via Windows Media Foundation (WMF) when playing back video (e.g., on YouTube, streaming sites). media.wmf.dxva.d3d11.enabled