Hi, I am using the 2013 version and while I wanted to upload a video from Magix Edit, google claimed that I can't sign in due to the browser - please help
Welcome to the Magix user to user forums.
Clearly, MEP 2013 is now a rather "old" version of the software and, since it was first released, Google has made numerous changes to the uploading process for YouTube. From your error message I would suspect that your version of MEP tries to make an unsecured (http:) connection to the server and Google requires a secure one (https:).
The easiest solution is to complete the Export of your video to a file on your hard drive, using one of the formats recommended by Google and then upload directly to your YT account.
HTH
Jeff
Forum Moderator