Latest Firefox Released for Windows

zanxion said:

For some reason, while Chrome plays HD youtube videos fine, Firefox 58 does not play them at all in my Windows 10 Pro setup. Is there a way to fix this?

Can you post a link to one of those video's that your FF won't run, I'll test it on my FF 58.2

Works perfectly here.

zanxion said:

Here is one:
The Eagles - Hotel California solo (Cover by Chloé) - YouTube

And another one:
Deep Purple solo by Gretchen Menn - YouTube

Both play wonderfully in Chrome, but in firefox they stop after two-three frames.
I run firefox on Windows 10 Pro 64bit on a Dell Latitude E4300 with the GMA 4500MHD graphics chipset.

My Firefox is v58.0.1. I can see these plugins already installed:
OpenH264 Video Codec provided by Cisco Systems, Inc.
Widevine Content Decryption Module provided by Google Inc.

Could it be something missing?

Could not run the 1st one, because it reported not available in my country. :)
2nd one ran fine, no issues. Latest FF is 58.0.2 Also. You need to update.
What I would suggest is do a Clean install of your FF. Make a backup of your bookmarks and Passwords before removing your FF. I've had to do a clean install, and after I did, FF ran better and faster than it ever did. :) You could try using this older app for making your FF backup.
Download Mozbackup - MajorGeeks

zanxion said:

Here is one:
The Eagles - Hotel California solo (Cover by Chloé) - YouTube

Good, isn't she?

In FF 58.0.2 (x64) Stats for Nerds: