We are happy to share with the community our FREE installer for CEP and UXP extensions for Adobe hosts: Adobe After Effects, Premiere Pro, Photoshop, Illustrator, Audition, and Media Encoder. It now also supports UXP extensions. It will work with any .zxp or .ccx extension, it does not have to be one you got from us. It has a fallback custom install option that should work in cases where other installers (including Adobe's own installer) fail. So if you have been unable to install a ZXP or UXP extension on your system please give our installer a try. It has a super friendly and easy-to-use drag-and-drop on macOS and double-click on Windows.
If you experience have any issues, please check out the FAQ first, it answers 99% of all support questions.
If you experience have any issues, please open a support ticket