Adobe extensions show in the Extension Manager and are enabled but do not appear at all in Photoshop CC 2014. Third party extensions do show up and can be used. All extensions are available in and can be used Photoshop CC. I have reinstalled CC and Extension Manager to the most recent releases and the Adobe extensions are still not available in Photoshop CC 2014. What should I do now?
I am having the same issue.
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
Adobe is working on HTML based version of Adobe Watermark, eMailer, etc.
If some extensions are must have for you, you have to continue to use PS CC until HTML based counterparts become available.