Dropbox adds itself to list of startup items every time I use it
I don't want Dropbox to open every time I use my computer.
But every time I use Dropbox, it adds itself to the list of startup items and I have to manually remove it.
This is highly intrusive - spammy and predator behavior.
How can I stop Dropbox from adding itself to the startup item list?
MacBook Pro with Retina display, OS X Yosemite (10.10.5), 512 Gb SSD, 16 Gb RAM,
