I'm on a Mac with PS CC 2017 with some extensions/plugins installed. I can go to window>extensions>[name] and the panels appear without any issues.
But I can't find them on disk. I've looked in the applications > PS CC 2017 > plug-ins folder, library>app support>adobe folder (the one outside the users folder), the users>me>library>prefs, and the users>me>library>app support>adobe folder (sorry for the not exact paths, I'm typing this from a PC). All I've managed to come up with is 2 from adobe themselves (the CC libraries and something else). I have about 5 plugins I installed a while back, and I have to change computers (long story, not optional). I would just re-download them, but one seems to have been removed from online entirely (naturally, it's the one I use most often and saves me the most time).
Is there somewhere else it could be? Most of the places I listed don't even have an extensions or plug-in's folder, even though websites I was reading were saying the plug-in should be there.
Is there somewhere else I can check? Is there a way to tell photoshop to just tell me where the code files live?
That's actually a good question, in as much as it is not easy to answer. With third party extensions, I think it depends on the developer. I just searched my boot drive for Paper Texture Pro' and got no hits, but add-ons like the Topaz filters appear under Program files (sorry, Windows 10). A lot of the Extensions have files in App Data\Roaming as well as the .exe files in Program Files.
I'll give you the file locations link anyway
Thanks, that's where all of them are at
(though also I was able to re-download the extension by using the wayback machine)