I have an iMac (MacOS Mojave, 10.14.4) that was initially used by my spouse. She installed Dropbox first using her login. The iMac used to auto log in to her account, but I have logged out of her account on the iMac, hoping from here forward to always auto log in to my account.
Similarly, using the Safari web browser to go to dropbox.com, the website auto logged in to her account, now I want it to only log in to mine.
Yet, sometimes the iMac and the dropbox website auto log in to her account. How do I forever stop the Apple OS X install AND dropbox.com on this computer from auto logging in to her account?
(Two options seem viable: she may never need to log in to her old Dropbox account, so I could completely delete her account on both. Or, there must be a way to stop the auto log in and leave her account intact.)