message: exclude FF from COLR font check
diff: @@ -28,6 +28,12 @@ async function isColrFontSupported() {
  return colrFontSupported;
  }
  + // Firefox has supported COLR fonts since version 26
  + // but doesn't support the check below with content blocking enabled.
  + if (navigator.userAgent.includes("Firefox")) {
  + return true;
  + }
  +
  try {
  const canvas = document.createElement('canvas');
  const context = canvas.getContext('2d');
  