sources:
  cbindgen-vendor.tar.xz: 5ed5e4744f281d217e56035036af4cef24a29935
  firefox-67.0.4.source.tar.xz: a6a28648bfad6aa9c2bbf1e9b4999909196dd741
  firefox-dictionary-61.0.2.tar.bz2: 25929c585dc8568a32d5be49aacc672f0ed2202f