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VP9 hardware decoding doesn't work on AMD Radeon Vega 8

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I am using Windows 10 64 bit and I am on Firefox 76.0.1 64 bit. VP9 will not hardware decode despite being supported by this GPU. I tested it with Kodi which was able to decode the video using hardware acceleration just fine. When I install the h264ify addon which switches youtube streams to h264 Firefox handles hardware acceleration with no issues.

I am using Windows 10 64 bit and I am on Firefox 76.0.1 64 bit. VP9 will not hardware decode despite being supported by this GPU. I tested it with Kodi which was able to decode the video using hardware acceleration just fine. When I install the h264ify addon which switches youtube streams to h264 Firefox handles hardware acceleration with no issues.
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