In DW CC15 ... installing over cc14 ... it reinstalls all of my extensions ...
For HTML5 video player, extension manager sez: This extension cannot be installed. It requires DW version 12 or greater. With the DMX extension manager ... there is an error message with this plug in ... and it does not install on my Mac Pro OS 10.10.4. Need to use the plug in ... what's the solution? Thanks

Hello,
Please use the DMXzone Extension Manager in order to install the extension.

I did. Message is something like ... 'can't install on 64bit machine ..." something like that.
Thanks
Bruce

Please provide the exact error message that you see.
I am pretty sure this is just a warning that you may skip and select - "install anyway".

The actual verbiage is: Extension is not for 64bit Dreamweaver.
Thanks
Bruce

and I did hit "install anyway" ... and it does not appear upon reload of DW

Just appeared. I did that "reinstall" from the DMX extension manager about ten times ...
thanks for your help.

Question ... I want the player to start automatically ... and have selected "autoplay" as my only choice in the "Display" box.
It autoplays in desktop browsers ... however, it does not autoplay in tablets and mobile devices ... how can I make that happen???
Thanks
Bruce