Hide HDR support for Firefox 69. v0.1 2019-10-10
Intercepts isTypeSupported() calls by YouTube and lies about HDR support being available.
If this has no effect on yours, please edit the code of the script by removing the // on this line:
//console.log('testing for: '+ type);
Then, when you load a video, the script will dump out a list of all the different codecs YouTube is checking for to the Web Console.
Reference: https://developer.mozilla.org/docs/Tools/Web_Console
I think the interesting ones will contain eotf so you can filter the Web Console on that as a first approximation.
