{
  "version": "2026.9.25.1",
  "licence": "Mozilla Public License 2.0 (https://www.mozilla.org/MPL/2.0/)",
  "firefox": {
    "version": "153.3.0esr",
    "tag": "FIREFOX_153_3_0esr_RELEASE",
    "source": "https://archive.mozilla.org/pub/firefox/releases/153.3.0esr/source/firefox-153.3.0esr.source.tar.xz",
    "signature": "https://archive.mozilla.org/pub/firefox/releases/153.3.0esr/source/firefox-153.3.0esr.source.tar.xz.asc"
  },
  "overlay": {
    "url": "https://updates.ultimity.app/browser/Ultimity-2026.9.25.1-source-overlay.tar.gz",
    "sha256": "bd60046ce7d32c54ef37124add88613d99bc8623fd983210e23480871c6ab66d",
    "size": 1698642,
    "commit": "147d42dacf83566445ad01983ae62f729bfac351"
  },
  "build": "Unpack Mozilla's source, apply the overlay's apps/browser/mozconfig and branding as apps/browser/scripts/build.sh does, then run scripts/package.sh."
}