Since I have updated all my adobe programs to CC (2015)
extension Manager no longer shows them as installed programs and therefore cannot not use/reinstall extension in Premiere
I am on a MacBook Pro with the latest OS 10.10.4
Creative cloud shows everything is updated but I cannot seem to make it work.
Extension Manager is not supported for CC 2015. Please see this article: Adobe Exchange
You must not use Extension Manager for installation and instead use the CC Desktop app. There have been many posts on this topic so far so please check previous threads for more information.