[ButThreeLeftsDo]

This isn’t a prompt for an update. It’s asking me if I wish to INSTALL Flash. Which I already have and it works just fine.

[trebb]

Might be some malware trying to lure you to a bad site. Might want to run a full virus scan and then follow up with Malwarebytes anti-malware app.

If it is intrusive, it is likely to be something that found a niche and is now trying to get you to open the door.