I have a mini mac and the browser is very out of date. I think I purchased it in 2013

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.

With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install. Make sure to use Only Safari to commence the download as Others may not work

Make a Time Machine Backup Before attempting. Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina and Big Sur Only support 64 bit and there is no workaround.

Are there any AntiVirus, Disk Cleaner, Optimizers, Un-installers, etc installed which should be removed as per Developers Instructions. They are useless, unneeded, cause havoc and interfere with the normal operation of the OS and may even Corrupt the OS requiring a Reinstallation

System Requirements for Catalina

Mac mini

Learn how to identify your Mac mini.

• Mac mini (2018)
• Mac mini (Late 2014)
• Mac mini (Late 2012)

Hello, Superkindermom.

Click the Apple icon > About This Mac to see the details of your mini, including the production year.

Then in the same window, click Software Update... and apply any updates (not upgrades) that it identifies for your Mac. This will include security enhancements for the browser as well as the currently installed version of macOS that you're running.

Why do you believe your browser to be out of date?

Are you experiencing some issue with Safari?

Might try this, it's Chrome without google & without Ads...

https://brave.com/

https://support.brave.com/hc/en-us/articles/360021357112-What-are-the-system-requirements-to-install-Brave-