i want to update my mac browser to latest version

The Apple Safari web browser is part of and is updated with macOS.

Which macOS upgrades are available depends on which Mac, and which Mac model year.

Post both the Mac model and model year here, and we can provide your upgrade options.

The Mac model and Mac model year is available from the Apple menu > About This Mac.

Details: How to download macOS - Apple Support

If you can't upgrade your 'OS, then...

Mostly you just need a more modern Browser than Safari on Mojave, or High Sierra like Firefox or Brave.

https://brave.com/

Opera…

https://www.opera.com/download/requirements

Opera system requirements | Opera

Thanks to dialabrain…

Firefox 112 is now the current version. runs in High Sierra.

https://www.mozilla.org/en-US/firefox/new/

BDAqua wrote:

Thanks to dialabrain…

Firefox 112 is now the current version. runs in High Sierra.

https://www.mozilla.org/en-US/firefox/new/

Guess what changed to 112.0.1 today? Go ahead, guess. 🙂