Security Issue with multimedia playback on Mac OSX

Currently your multimedia playback method uses an older and insecure method.
I had to reinstate old plugins to make it work, and I would like to be able to disable these plugins as soon as possible.

Can you please update your code for this as outlined here: https://support.apple.com/en-au/HT205081
Extract below
Update your webpages to stop requiring the plug-in

If you're a web developer, update your webpages to replace any <embed> tags that call the legacy QuickTime 7 web plug-in. You should now use the HTML5 <video> tag, which allows your media to play back in most modern desktop and mobile web browsers, without additional software or plug-ins. Information about how to use this tag is widely available.
HTML/Elements/video on W3.org
"Advanced Media for the Web" WWDC 2014 session video
If you're using the legacy QuickTime 7 web plug-in to display panoramic images, use an HTML5-based panorama viewer instead. Search the web for a panorama viewer that doesn't require a web plug-in.