Comment 24 for bug 762968

to fix this, in addition to following <https://lists.ubuntu.com/archives/ubuntu-devel-announce/2011-August/000886.html>, you must also install libnss3:i386 (it will drag libnspr4:i386 & libsqlite3-0:i386 with it which as also needed).

that's enough to unbreak the install, but then, you'll notice at runtime that it also need curl:

"Adobe Flash Player error: could not load cURL library"

so you must also install libcurl3:i386.

that fixes it for me.

Note that you should use 'apt-get', as it seems multiarch broke 'aptitude' (which is no longer able to find any solution for the deps resolutions).