After adjusting and verifying overall operation, proceeded to fine tune Firefox and validate a variety of my Web destinations, bookmarks, extensions, etc. In doing so encountered a very obvious and odd issue regarding Media Player appearance and usage. I've taken a screenshot (refer attached) where one can easily see that the visual representation of the Media player/controls is rather odd

Have carefully reviewed: all Firefox media options, MIME associations, and Media install items. All appears AOK and is exactly like my prior Mageia 1 environment, which worked perfectly.
In doing research this "problem" appears to be similar with this Bug that has already been reported: https://bugs.mageia.org/show_bug.cgi?id=9092. This Player issue occurs regularly on various sites. Really surprised that more reports of this "problem" haven't surfaced? Or is it just a few users like me...?
Would appreciate any insghts, comments, or possible resolution actions. Thank you.