Hi, the Google problem is getting worse. Firefox only warns because of their botched malware "detection".
According to statements by Mattias Wadenstein and Steve McIntyre in the thread around https://lists.debian.org/debian-cd/2020/11/msg00005.html it is probably about this naive reasoning from https://support.google.com/chrome/answer/6261569?p=ib_download_blocked "We've found that the website you tried to download the file from has been known to distribute malware." So use some more brainful program for downloading. wget for example. Have a nice day :) Thomas