This bug was fixed in the package thunderbird - 12.0.1+build1-0ubuntu0.11.10.1

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thunderbird (12.0.1+build1-0ubuntu0.11.10.1) oneiric-security; urgency=low

  * New upstream stable release (THUNDERBIRD_12_0_1_BUILD1)
    - see LP: #987305 for USN information

  * Update globalmenu-extension to 2.0.6
  * Call xvfb-run with "-a" in case there are other servers running on the
    builder
    - update debian/build/testsuite.mk
  * Thunderbird recommends libcanberra0 now that bmo: #635918 has landed
    (LP: #732572)
    - update debian/control{,in}
  * Refresh patches
    - update debian/patches/avoid-dbus-roundtrip-for-httpchannel.patch
    - update debian/patches/no-sps-profiler-on-unsupported-archs.patch
  * Drop patches fixed upstream
    - remove debian/patches/ctypes-callback-reentry-fix.patch
    - update debian/patches/series
  * Drop the version number from the install path, like we've done for Firefox
    - update debian/rules
    - update debian/thunderbird-dev.install.in
    - update debian/thunderbird-dev.links.in
    - update debian/thunderbird.dirs.in
    - update debian/thunderbird.links.in
    - update debian/thunderbird.lintian-overrides.in
  * Fix LP: #939652 - Web search functionality is broken in Ubuntu builds.
    Ship the localized Opensearch plugins in distribution/searchplugins.
    Also add a patch to use the locale of the global chrome package to
    select the search locale, like we do with Firefox. Add another patch
    to fix various bugs in webSearchProvider.js (see bmo: #733802)
    - add debian/patches/distro-locale-searchplugins.patch
    - update debian/rules
    - update debian/thunderbird.dirs.in
    - update debian/thunderbird.install.in
    - update debian/thunderbird.links.in
    - update debian/vendor.js
  * Fix LP: #894166 - Make Thunderbird work with our system hyphenation
    patterns, and stop including our own
    - update debian/vendor.js
    - add debian/patches/dont-include-hyphenation-patterns.patch
    - update debian/patches/series
  * Fix LP: #925907 - 12.04 Thunderbird colour theme is unreadable. Use
    -moz-menubartext rather than MenuText for elements with menubar styled
    backgrounds. Should also fix LP: #856939
    - add debian/patches/use-menubar-text-colour-on-tabbar.patch
    - update debian/patches/theme-refresh-compose-toolbar-icons.patch
    - update debian/patches/theme-refresh-addressbook-toolbar-icons.patch
    - update debian/patches/series
  * Make the language packs Architecture: any. Whilst they are actually
    architecture independent, we do install them in to /usr/lib (as the
    extensions location is shared with architecture-specific extensions).
    This also avoids the problem of offering incompatible language pack
    upgrades to users on architectures where Thunderbird fails to build
    (I'm looking at you, powerpc)
    - update debian/control.langpacks
    - update debian/control.langpacks.unavail
    - update debian/rules
    - refresh debian/control
  * Disable fix-build-failure-without-yarr-jit.patch, as it needs some work.
    This means that there is currently no powerpc support
 -- Chris Coulson <email address hidden>   Sun, 29 Apr 2012 23:52:52 -0500