user_pref("gfx.offscreencanvas.enabled", true);
user_pref("layers.acceleration.disabled", false);
user_pref("layers.acceleration.enabled", true);
user_pref("layers.acceleration.force", true);
user_pref("layers.acceleration.force-enabled", true);
user_pref("layers.shared-buffer-provider.enabled", true);
user_pref("webgl.force-enabled", true);
user_pref("pdfjs.enableWebGL", true);