Some more news on this topic: 1) I did a complete new install with the actual wheezy release yesterday (2013-01-23) the same way I did it 2 weeks ago.
2) Iceweasel is NOT freezing anymore - its working as expected on the websites (www.bild.de<http://www.bild.de>) Assumption what the problem was: 3) After the previous installation of the amd64 bit wheezy, I wanted to have the 32-bit package support and did: "dpkg --add-architecture i386" "aptitude update" "aptitude install ia32-libs" "aptitude install ia32-libs-gtk" 4) I also did a "aptitude install icedtea...-plugin" What version of "icedtea..." had been installed, the 32bit or the 64bit ? If I do "dpkg --add-architecture i386", will this install 32-bit software or 64-bit software ? I am using "synaptic" as package-manager. Thanks for some feedback !