I'd like to contribute to this thread tangent and say that I like Firefox with a passion and think Chrome is good, but definitely not as good as Firefox. You really can't beat them add-ons.
As for media, I user The KMPlayer
for media playing. It's got internal codecs for pretty much any format you want (including .swf files) and has an incredibly huge list of options to tune the player and media.
For music, I use Teen Spirit
, which will be renamed to Jaangle
sometime soon. I discovered it not too long ago and fell in love with it: intuitive interface, supreme speed (on my computer, speed is something of an issue >.>), and a great library. For a program that's not hit version 1 yet, I think TS has loads of potential.