Two windows always open when opening a third party application.
Hello Friends, When I am working with any third-party application, and when needed opening that application's web-site (with Firefox as my default browser), every single time two Firefox windows open. One will simply be a window with a single new tab. The second will be a window with the applications webpage in one tab, and a second new tab. On my desktop (iMac running any latest version), this doesn't really create a problem other than unnecessary clutter. But on my newest MacBook Air (late 2019 model running any version) once I close both of the Firefox windows, I can never reopen a new window until after I run CleanMyMac. I've tried to find others with this problem, and searched message boards for multiple products, to no avail. Any help or insight would be greatly appreciated.