Flash based extensions are not supported by PS CC 2014 anymore. Please refer to http://blogs.adobe.com/photoshopdotcom/2014/04/photoshop-spring-cleaning.html, http://blogs.adobe.com/jkost/2014/06/installing-the-2014-release-of-creative-cloud.html
And http://blogs.adobe.com/crawlspace/2014/06/2014-release-of-photoshop-cc-faq.html#plugins (scroll down to "Why don’t my 3rd Panels show up in the 2014 release of Photoshop CC? What happened to Oil Paint, Mini-Bridge & Kuler?”)
There is a new Kuler HTML5 panel available on Add Ons: http://adobe.ly/UgxQSN
If some extensions are not supported by PS CC 2014, you have to continue to use them in PS CC until their HTML based counterparts become available.
Thank you, Carl. I have another problem. After my Extension Manager for CC updated, the only Product listed is Photoshop CC 2014. I don't know how to get Photoshop CC to show up in the Product menu. I all of a sudden on Saturday lost one of my major Extensions in Photoshop CC and I can't get it back. When I go through Adobe Exchange, the Extension shows in the list of my Extensions. I go through the entire Install process, but it doesn't install. I think that it might be because Photoshop CC is not in the Product list. How do I get Photoshop CC to show up?
It's strange that PS CC disappeard in EM CC if it was shown before update.
EM-supported products will write their information into Product Configuration Database (PCD) during their installation, including name, version, locale, installation location, etc.. EM will get product information from PCD at launch. If EM can't find a product in recorded location, EM will not list it. So the most possible root cause is that wrong installation location was saved in PCD for PS CC.
If its path is incorrect, since it's difficult to edit database for non-programmer, I am afraid you have to re-install PS CC.