Why are colors different in Firefox and Chrome!?

Question

Google Chrome

Hey! Just "discovered America". The same video in Google Chrome and Mozilla Firefox is displayed differently.
Google Chrome (video and background are almost the same color)

Mozilla Firefox (background much darker than video)

WHAT TO DO ABOUT THIS?
PS Site

Answer 1

<video autoplay="" muted="" loop="" class="preloader__video">
  <source type="video/webm" src="img/loader.webm">
  <source type="video/mp4" src="img/loader.mp4">
</video>

Really, what to do with it? Maybe not put two different videos or not be surprised that they are different?