Скачать или смотреть HTML : Firefox reports "No Video with Supported Format and Mime Type Found"

HTML : Firefox reports "No Video with Supported Format and Mime Type Found"
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to share a hidden feature with you, and here it is.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on the keyboard.
Your YouTube progress bar will transform into a flashing rainbow.

A short overview of who I am,
Hey, I'm known as Delphi.
I am here to assist you in getting the answers you need.
HTML : Firefox reports "No Video with Supported Format and Mime Type Found"
Let me know if you have more specific questions or concerns by leaving a comment or starting a chat.
Please feel free to share your answer or insights on the answer by leaving a comment below.
Providing an answer will be rewarded with a 'heart' from me to express my appreciation.
Mime Type HTML Video and Format Found" reports Firefox Supported with : "No