How do I remove "Track My Package" app?

Hi ! Go to the 3-bar menu => Addons => and look for any unfamiliar or suspicious looking extensions (like maybe : 'Packages 100.3' ?) When you find any : remove them. Go the same in your system's Control Panel. However : most malware will be 'hiding' somewhere , so let's run malware scans : Further information can be found in this article : https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no Run most or all of the listed malware scanners. They all work differently - what one program doesn't pick up, the other might. Especially for Mac : https://www.malwarebytes.com/mac/ https://malwaretips.com/blogs/remove-mac-os-x-virus/ Also see : https://www.fixyourbrowser.com/removal-instructions/remove-package-tracking-toolbar-uninstall-instruction/