Some extra info
It was the NPAPI 64/bit plugin for Firefox I was talking about.
Also note that I tried it out watching non DRM content and there are signs of video tearing which seems random ie not necessarily connected to fast moving scenes. The same scenes on Chrome with Flash 188.8.131.52 were OK.
All this was tested on a linux Ubuntu MATE 16.04.1 system with Intel H81 graphics
DRM support is currently not available on Flash Player for Linux. To find out what features/bug fixes are included in a given beta release, please view the Release Notes, linked to from the beta download page, http://labs.adobe.com/technologies/flashruntimes/flashplayer/ .
Yes my bad, I thought it might have been sneaked in there despite not being mentioned, since its a major deal for Linux users. I cannot believe its taking so long to implement,
Maybe you can tell me, how does Chrome browser running on linux based Chrome OS have a working Adobe Flash player even on DRM content (ie I can watch HBO online with Chrome with Flash Player on Chrome OS)? Do they know something Adobe don`t or what? Or do you both know something that you are not willing to share with everybody else???
Everyone wanting to use a stock linux distro such as Ubuntu for media viewing (such as myself) is eagerly awaiting an answer to this pain in the neck issue.
In general, Adobe is investing in DRM and HTML5 video, which is where things are heading. The DRM and Primetime video in Flash Player are actually developed and contributed by dedicated engineering groups working on Primetime and DRM, and I can't really speak expertly to their business strategy or timelines. Those questions are better posed to the Adobe Primetime group for comment.
If DRM support were to come to Linux, given the larger ecosystem trends, I would expect to see it in the form of Primetime and Adobe Access support for HTML5 video and not for video delivered over Flash Player. Similarly, I expect that as our engineering focus around rights-managed video turns to HTML5, that you'll see the premium video streaming services transition to HTML5 in tandem. There are definitely no short-term plans to deliver DRM support for Linux.