Cross-check the verify-installer guide against the build you just downloaded

After you download a desktop or Firefox build, open the verify-installer steps and match the published hash to the file sitting in your Downloads folder before you run it.

Keep OFDownloader (by SaveMyDayApp) trust notes bookmarked, then walk through the verify-installer guide against that exact binary.

If the hash or filename does not line up, stop and re-download from the official site instead of guessing.