[Bug 991489] Re: package firefox 11.0+build1-0ubuntu0.10.04.2 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2

[Nino R. Pereira]

For reasons unknown I could no longer play Youtube videos. I got an
error message that I no longer remember. I removed firefox (with apt-
get) and reinstalled, but no better. Then, fearing that some file was
left hanging even though I removed and reinstalled, I decided to find
the string 'firefox' in the entire computer and remove all those files.
That should fix it, right? RIGHT? But, on reinstalling firefox I got
this particular bug.

I followed the suggestions bu Joseph Salisbury, but this didn't fix the
error.  Below is what I get.

I admit: I removed the file /var/cache/apt/archives/firefox.. Obviously,
I was stupid, but I didn't know what else to do.

pereira at steve:~$ sudo apt-get install firefox
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  latex-xft-fonts firefox-gnome-support kmozillahelper
Recommended packages:
  xul-ext-ubufox
The following NEW packages will be installed:
  firefox
0 upgraded, 1 newly installed, 0 to remove and 21 not upgraded.
Need to get 18.5MB of archives.
After this operation, 41.4MB of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main firefox 12.0+build1-0ubuntu0.10.04.1 [18.5MB]
Fetched 18.5MB in 11s (1,614kB/s)                                                                      
(Reading database ... 251769 files and directories currently installed.)
Unpacking firefox (from .../firefox_12.0+build1-0ubuntu0.10.04.1_amd64.deb) ...
dpkg: error processing /var/cache/apt/archives/firefox_12.0+build1-0ubuntu0.10.04.1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/firefox/plugins', which is also in package adobereader-deu 0:9.4.2-0lucid1
Processing triggers for man-db ...
Processing triggers for desktop-file-utils ...
Processing triggers for python-gmenu ...
Rebuilding /usr/share/applications/desktop.en_US.utf8.cache...
Processing triggers for python-support ...
Errors were encountered while processing:
 /var/cache/apt/archives/firefox_12.0+build1-0ubuntu0.10.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

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https://bugs.launchpad.net/bugs/991489

Title:
  package firefox 11.0+build1-0ubuntu0.10.04.2 failed to
  install/upgrade: subprocess installed pre-removal script returned
  error exit status 2

Status in “initramfs-tools” package in Ubuntu:
  Incomplete

Bug description:
  new - update, firefox package sitting uninstallable 
  error 
  /var/cache/apt/archives/firefox_12.0+build1-0ubuntu0.10.04.1_amd64.deb  subprocess installed pre-removal script returned error exit status 2

  ProblemType: Package
  DistroRelease: Ubuntu 10.04
  Package: firefox 11.0+build1-0ubuntu0.10.04.2
  ProcVersionSignature: Ubuntu 2.6.32-41.88-preempt 2.6.32.59+drm33.24
  Uname: Linux 2.6.32-41-preempt x86_64
  Architecture: amd64
  Date: Sun Apr 29 16:58:31 2012
  ErrorMessage: subprocess installed pre-removal script returned error exit status 2
  SourcePackage: initramfs-tools
  Title: package firefox 11.0+build1-0ubuntu0.10.04.2 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 2

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