I recently updated to Mojave and have been having the same problem with Photoshop CS5 crashing. Before I knew about adding it to accessibility, I downloaded Photoshop CC 2019. Now I’m trying to add CS5 to accessibility but every time I do it automatically adds CC 2019 instead, even after I uninstalled CC 2019. Is there a way to get CS5 into the Accessibility instead of CC 2019? Is there a way to get my iMac to forget it ever had CC 2019 installed?