user_pref("gfx.prefer-mesa-llvmpipe", true);
user_pref("gl.msaa-level", 0);
user_pref("layers.acceleration.disabled", true);
user_pref("layers.acceleration.enabled", false);
user_pref("layers.acceleration.force", false);
user_pref("layers.acceleration.force-enabled", false);
user_pref("layers.componentalpha.enabled", false);
user_pref("layers.shared-buffer-provider.enabled", false);
user_pref("webgl.disable-angle", true);
user_pref("webgl.enable-webgl2", false);