One major drawback Rated 3 out of 5 stars

Good add-on EXCEPT one, highly annoying element. It requires that the master password be entered, either at the time, or in that session prior to the backup starting - and in the same calendar day. This means, for those of us that have the backup starting in the morning, it can sit there, if I'm not around, for hours waiting for the master password to be entered. All this time it maxes out the processor! This is beyond mad! All I ask is that there is a feature to disable this. I do not care about a security feature for a daily backup - it is worthless and amazingly annoying.
Otherwise well done.

This review is for a previous version of the add-on (6.3.3.2). 

It's not FEBE

FEBE does not require nor prompts for any password to perform a backup or restore. If you are being prompted, it is most likely because you are attempting to backup to a drive/directory that needs permission. It's your operating system asking, not FEBE.