How to remove tilte in taband write a meaningful footer

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This is what shows in the browser tab, I would like something more personalized to show, how do I do this?
Also, I need a professional-looking footer with contact points, this increases SEO, and some certificates like Comodo or BBB, how edit footer?
I plan on keeping Zen Cart in the sponsors sidebox, and I could put the logo and phrase "powered by Zen Cart" too.
Thank you,

CK

The docs are, again, your friend: https://docs.zen-cart.com/user/template/basic_customizations/#my-browser-bar-says-zen-cart-the-art-of--where-do-i-change-that

lat 9,
Thanks for your volunteer help.
Many people have sent me to docs, the problem is my present situation, I am very worried about many serious things and don't have patience, so I press the panic button and go to forums, sorry.