Problem: The Adobe Flash Plugin for Linux is mediocre at best which can be a problem if you like to watch videos online through Flash players on sites like YouTube or Vimeo.
Solution: Replace the flash player in Firefox with Totem!
*NOTE: Uses non-free packages, you will need RPMFusion in your repositories*
*DISCLAIMER: I do not maintain the user script in this guide and take no responsibility for it*
Step 1: Install required packages
Step 2: Install GreaseMonkey and ViewTube Userscript
su -c 'yum install firefox totem totem-mozplugin gstreamer-ffmpeg'
Install GreaseMonkey for Firefox available from Mozilla's Add-on database restart Firefox and install ViewTube
Step 3: Enjoy smooth streaming video in Linux!