But seriously, I have no problem with over 90% of the sites I visit using this Firefox instance. But then there's wired.com and imgur.com, for example, which display just blank pages.
I have no clue what it is. I've made too many changes.
But I'm reasonably confident that it's something evil that they're doing, rather than something silly that I've done.
When I visit Google Play Music in Firefox the interface loads about 80% but all clicks result in an error message.
I'm fairly sure it comes down to the automatic tracking protection Firefox touts, but I can't seem to find how to turn it off for one specific site. Or better yet the specific requests that cause breakage on the specific site.