This is very complicated for ordinary mortals (using Mac OS X 10.10.4).
I have Creative Cloud Desktop v18.104.22.168 installed.
I also have Adobe Photoshop CC (2015) v2015.0.0 installed.
I also have Adobe Extension Manager v22.214.171.124 installed.
When I run Extension Manager it does not see Photoshop CC (2015).
How can I get Extension Manager to see Photoshop CC (2015) so I can get rid of some extensions that I no longer want?
In the FWIW column, I was able to figure out from another discussion the the correct filepath to the unwanted extension is Macintosh HD>Library>Application Support>Adobe>CEP>extensions.
I was able to delete the unwanted extension and start Photoshop CC (2015). Clicking Window>Extensions shows that the unwanted extension is no longer there.
On a Mac Pro (late 2013) running OS X 10.10.4.
Having the same problem - so extension manager CC is worthless I guess?