Bug#833526: firefox-esr: Faulty alternatives after upgrade from iceweasel to firefox-esr

[Torquil Macdonald Sørensen]

Package: firefox-esr
Version: 45.3.0esr-1
Severity: normal

After upgrading from iceweasel to firefox-esr, I now have several dangling synlinks
in /etc/alternatives, as well as a file in /var/lib/dpkg/alternatives with
incorrect permissions. The second problem has also happened to me with another package,
but I'm not sure if it is package-specific or a bug in the alternatives-system itself.

root$ ls -l /var/lib/dpkg/alternatives/x-www-browser
-rw------- 1 root root 149 Aug  5 14:45 /var/lib/dpkg/alternatives/x-www-browser

which results in:

user$ update-alternatives --display x-www-browser
update-alternatives: error: unable to open file '/var/lib/dpkg/alternatives/x-www-browser': Permission denied

Here are the dangling symlinks:

user$ ls -l /etc/alternatives/gnome-www-browser /etc/alternatives/x-www-browser
lrwxrwxrwx 1 root root 18 Mar 14 12:02 /etc/alternatives/gnome-www-browser -> /usr/bin/iceweasel
lrwxrwxrwx 1 root root 18 Mar 14 12:02 /etc/alternatives/x-www-browser -> /usr/bin/iceweasel

Best regards,
Torquil Sørensen

-- Package-specific info:

-- Extensions information
Name: Adblock Plus
Location: ${PROFILE_EXTENSIONS}/{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}.xpi
Status: enabled

Name: Default theme
Location: /usr/lib/firefox-esr/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi
Package: firefox-esr
Status: enabled

Name: Firefox Hello Beta
Location: ${PROFILE_EXTENSIONS}/loop at mozilla.org.xpi
Status: enabled

Name: Flashblock
Location: ${PROFILE_EXTENSIONS}/{3d7eb24f-2740-49df-8937-200b1cc08f8a}
Status: enabled

Name: Ghostery
Location: ${PROFILE_EXTENSIONS}/firefox at ghostery.com.xpi
Status: enabled

Name: Image Zoom
Location: ${PROFILE_EXTENSIONS}/{1A2D0EC4-75F5-4c91-89C4-3656F6E44B68}.xpi
Status: enabled

Name: NoSquint
Location: ${PROFILE_EXTENSIONS}/nosquint at urandom.ca.xpi
Status: enabled

Name: StartupMaster
Location: ${PROFILE_EXTENSIONS}/{506d044e-41fa-4cc8-9dc6-9ff70e96eebf}.xpi
Status: enabled

-- Plugins information
Name: Shockwave Flash (11.2.202.632)
Location: /home/tmac/.mozilla/plugins/libflashplayer.so
Status: enabled


-- Addons package information
ii  firefox-esr    45.3.0esr-1  amd64        Mozilla Firefox web browser - Ext

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (990, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages firefox-esr depends on:
ii  debianutils               4.8
ii  fontconfig                2.11.0-6.4
ii  libasound2                1.1.2-1
ii  libatk1.0-0               2.20.0-1
ii  libc6                     2.23-4
ii  libcairo2                 1.14.6-1+b1
ii  libdbus-1-3               1.10.8-1
ii  libdbus-glib-1-2          0.106-1
ii  libevent-2.0-5            2.0.21-stable-2+b1
ii  libffi6                   3.2.1-4
ii  libfontconfig1            2.11.0-6.4
ii  libfreetype6              2.6.3-3+b1
ii  libgcc1                   1:6.1.1-11
ii  libgdk-pixbuf2.0-0        2.34.0-1
ii  libglib2.0-0              2.48.1-2
ii  libgtk2.0-0               2.24.30-4
ii  libhunspell-1.4-0         1.4.1-2
ii  libnspr4                  2:4.12-2
ii  libnss3                   2:3.25-1
ii  libpango-1.0-0            1.40.1-1
ii  libsqlite3-0              3.13.0-1
ii  libstartup-notification0  0.12-4
ii  libstdc++6                6.1.1-11
ii  libvpx3                   1.5.0-3
ii  libx11-6                  2:1.6.3-1
ii  libxcomposite1            1:0.4.4-1
ii  libxdamage1               1:1.1.4-2+b1
ii  libxext6                  2:1.3.3-1
ii  libxfixes3                1:5.0.2-1
ii  libxrender1               1:0.9.9-2
ii  libxt6                    1:1.1.5-1
ii  procps                    2:3.3.12-2
ii  zlib1g                    1:1.2.8.dfsg-2+b1

Versions of packages firefox-esr recommends:
ii  gstreamer1.0-libav         1:1.8.2-dmo1
ii  gstreamer1.0-plugins-good  1.8.2-1

Versions of packages firefox-esr suggests:
pn  fonts-lmodern          <none>
ii  fonts-stix [otf-stix]  1.1.1-4
ii  libcanberra0           0.30-3
ii  libgnomeui-0           2.24.5-3.1
ii  libgssapi-krb5-2       1.14.3+dfsg-1
pn  mozplugger             <none>

-- no debconf information