Opera 11.x and 12.x do not play embedded MP3 files

[zuko1]

Ever since I discovered Opera I could never go back to Firefox. Giant and slow uncustomisable thing... Largest of them all and least featured. With a bunch of addons I could get it to my liking but then the browser is less responsive than frozen molasses. I have it installed for the rare occasions when a site is not very usable in Opera, and last time it happened was over a year ago, sometimes all it takes is to change the User agent and bam a site works perfectly.

12.x I don't use normally, that thing is incredibly slow compared to 11.x, and the new Chrompera should not exist at all.... WTH were they thinking... anyway its their death.

Regarding 12.02, you should install it over 11.something. Vanilla install never quite worked well in my cases.