How to move an app icon to the menu bar

That is a function of the developer's program. Menubar icons are a customization that Apple offers developers.

Information below can be hazardous to the stability of the system if you do anything other than carefully browse the system. Backup before proceeding.

The folder structure from the boot hard drive System -> Library -> CoreServives -> Menu Extras is where Mac OS X stores the few application that do get Menubar icons. Keep in mind, that Mac OS X menubar can get very crowded on notebook screens, and some applications may want to use the same space as is reserved for menubar icons, and can conflict for that space.

http://developer.apple.com/ is a great place to get familiar with Mac OS X development if you are interested in making code that uses that space. Keep in mind Ventura, the system in your signature is not High Sierra, the system you posted in: Mac OS 13.x (Ventura) is not the same as Mac OS 10.13.x (High Sierra)

LindaSMu wrote:

In the past, I have been able to add an app icon to the menu bar, such as Malwarebytes or weather. It is just a convenient way to see them. Is that no longer available? There is plenty of space on my desktop.

Whether an app's icon is visible in the Menu Bar is an option in a particular app's preferences/settings.

For example, you can choose to hide Malwarebytes icon in the Menu Bar or not, in Malwarebytes > Preferences > General.

Just to add, you can always add an app icon to the Dock.

You're welcome. Which app would that be?

FWIW, Malwarebytes Browser Guard is a browser extension so it would never be in the Menu Bar or the Dock.

On the other hand, Malwarebytes can be on one, the other, or both.

You're welcome.