OpenIndiana 151a3 : Upgrade VirtualBox to 4.1.14, Firefox 12, Thunderbird 12

I did now some upgrade on the OpenIndiana 151a3 installation:

• Firefox 12
  Download from here. I used the tar-Archive and the browser works well
  without problems for me.
   
• ThunderBird 12
  Download form here. I used also the tar-Archive here.
  For lightning you need the 1.4 version on Thunderbird 12. This works
  for ThunderBird. engimail is missing.
  
• VirtualBox 4.1.14
  Upgraded from 4.1.12 to 4.1.14. There are now major changes for
  the Solaris platform as mentioned in the changelog.
  Installation didn't have problems. LD_NODIRECT=1 environment
  is still needed to start.