Microsoft, why do you let me down at a critical moment?

My Nokia Lumia 920 with Windows Phone 8 installed lets me down when not expected:

• When trying to open Facebook-conversations. Meanwhile Twitter works just fine.
• When opening a website. Internet Explorer keeps loading and loading. Nothing on screen. Please allow other browsers on WP8!

It's so annoying! Every time I really want to make sure work is done I have my LG Nexus 4 with me with Android 4.3 which does what I want. Period.

That's in finnish. It says there is

a problem gathering the information.