Not a Firefox browser or Mozilla issue.

Thanks Mark I think it was just one of those intrusions that continually jump onto the screen these days. I ignored it. John

That would be something you would ask the printer support line why they are doing that.

Setting up brother printer asking me to sign up for malware bytes Guard ? should I please?

Nah, you don't need to sign up for Malwarebytes Guard to set up your Brother printer. That’s probably just bundled software or an ad just skip or decline it. Stick to the official Brother drivers from their website.

Hi John,

This forum is intended to help users with Mozilla products, such as Firefox. As a moderator, I'm going to mark this thread as off-topic and lock the thread since it is not a subject covered in the support forum. Please see Mozilla Support rules and guidelines.