How to Uninstall Apps & Their Files Using Third-Party Apps. If you'd rather not bother with the above process, these two apps will do the work for you. Because neither of these files are on the Mac App Store, make sure to allow app installs from unidentified developers, if you haven't already. App #1: AppTrap.
Menu Bar apps sit in your Mac’s menu bar and provide access to an array of features and services, all with just a simple click or tap of the app’s menu bar icon. They can bring additional productivity, utility, or security, or add useful information to your Mac’s menu bar.
Uninstalling an application is as simple as opening a Finder window, clicking “Applications” in the sidebar, Control-clicking or right-clicking the application’s icon, and selecting “Move to Trash.”. You can also drag-and-drop an application’s icon to the trash can icon on your dock. Or, open the Launchpad interface and drag-and-drop an application’s icon to the trash can from there.
I have a Stamps.com Connect icon in my Menu Bar. I do not use it and the program/app is long gone. How do I remove the icon from the Menu Bar? I have tried CMD and drag to pull it off. i have looked through the folders and tried to drag it to the trash can. Each attempt results in my being told it is open. I cannot close it. I've tried other suggestions found in search in the communities and nothing has worked. I appreciate any assistance.
NOTE: It also always opens when my Mac is rebooted or starting up.