Problem: Right now, to verify a download I copy the checksum from the source website, hash the file in my OS, and run a string compare command on the result vs the checksum value.
Solution: Functionality to get/ compare the hashes of downloads from the downloads menu/ inside browser. It can take in the the checksum value, and Firefox can hash the download then tell me if it matches the checksum value or not. Could select from a few popular checksum algorithms from a drop down menu like MD5/ SHA256. Firefox