$ sudo aptitude full-upgrade 
The following packages will be upgraded: 
  iceweasel libmozjs3d xulrunner-1.9.2{b} 
3 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 11.2 MB of archives. After unpacking 823 kB will be used.
The following packages have unmet dependencies:
  xulrunner-1.9.2: Depends: libstdc++6 (>= 4.5) but 4.4.5-8 is installed.
The following actions will resolve these dependencies:

     Remove the following packages:
1)     iceweasel                   
2)     xulrunner-1.9.2             



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