{ config, pkgs, lib, ... }:
let
  lock-false = {
    Value = false;
    Status = "locked";
  };
  lock-true = {
    Value = true;
    Status = "locked";
  };
in
{
  programs.firefox = {
    enable = true;
    policies = {
      Preferences = {
        "widget.wayland.vsync.enabled" = lock-false;
        "widget.wayland.opaque-region.enabled" = lock-false;
        "media.ffmpeg.vaapi.enabled" = lock-true;
        "media.hardware-video-decoding.force-enabled" = lock-true;
      };
    };
  };
}