Bug#654781: iceweasel: Certain plugins (e.g. Flash) fail to work when Iceweasel is started from within Icedove

[Richard Fuchs]

Package: iceweasel
Version: 10.0~b2-1
Severity: important
Tags: patch

Dear Maintainer,

When I follow a web link in Icedove and Iceweasel isn't running yet, Iceweasel
will start and load the requested page. However, this instance of Iceweasel
will then have a non-functional Flash plugin. Loading a page with an embedded
Flash element (in any window, any tab) will cause Iceweasel to freeze up for
>30 seconds and finally proceed loading the page without showing the Flash
element. This also happens after closing Icedove.

Closing Iceweasel, restarting it manually (e.g. from the menu) and reloading
the same page (then, even if it's loaded by following the link in Icedove, just
like before) results in a working Flash once again.

My version of Icedove is 3.1.16-1. This bug is a result of library interference
between Icedove and Iceweasel, so I'm not sure if it should be reported for
Icedove instead. However, since I'm seeing the effect in Iceweasel, I'm
reporting it here for now. Also, this isn't specific to Flash, other plugins
are likely to be affected as well.

It's caused by Icedove setting LD_LIBRARY_PATH to its own directory in
/usr/lib/icedove/run-mozilla.sh and not clearing the variable when launching
external programs. Since Iceweasel partially uses libraries with the same
names, it ends up loading the wrong ones (the ones from the Icedove directory)
which causes the symptoms.

Workaround for me is to edit /usr/lib/iceweasel/iceweasel and add "export
LD_LIBRARY_PATH=" as first executed line. Alternatively, Icedove could clear
this variable before launching other programs.



-- Package-specific info:

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.1.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages iceweasel depends on:
ii  debianutils         4.1
ii  fontconfig          2.8.0-3
ii  libc6               2.13-24
ii  libgdk-pixbuf2.0-0  2.24.0-2
ii  libglib2.0-0        2.30.2-4
ii  libgtk2.0-0         2.24.8-2
ii  libnspr4-0d         4.8.9-1
ii  libstdc++6          4.6.2-9
ii  procps              1:3.3.1-1
ii  xulrunner-10.0      10.0~b2-1

iceweasel recommends no packages.

Versions of packages iceweasel suggests:
ii  libgssapi-krb5-2                        1.10+dfsg~alpha2-1
ii  mathematica-fonts [ttf-mathematica4.1]  13
ii  mozplugger                              <none>
ii  ttf-lyx                                 2.0.2-1
ii  ttf-mathematica4.1                      13
ii  xfonts-mathml                           4

Versions of packages xulrunner-10.0 depends on:
ii  libasound2                1.0.24.1-4
ii  libatk1.0-0               2.2.0-2
ii  libbz2-1.0                1.0.6-1
ii  libc6                     2.13-24
ii  libcairo2                 1.10.2-6.2
ii  libdbus-1-3               1.4.16-1
ii  libdbus-glib-1-2          0.98-1
ii  libevent-2.0-5            2.0.16-stable-1
ii  libfontconfig1            2.8.0-3
ii  libfreetype6              2.4.8-1
ii  libgcc1                   1:4.6.2-9
ii  libgdk-pixbuf2.0-0        2.24.0-2
ii  libglib2.0-0              2.30.2-4
ii  libgtk2.0-0               2.24.8-2
ii  libhunspell-1.3-0         1.3.2-4
ii  libjpeg8                  8c-2
ii  libmozjs10d               10.0~b2-1
ii  libnotify4                0.7.4-1
ii  libnspr4-0d               4.8.9-1
ii  libnss3-1d                3.13.1.with.ckbi.1.88-1
ii  libpango1.0-0             1.29.4-2
ii  libpixman-1-0             0.24.0-1
ii  libreadline6              6.2-8
ii  libsqlite3-0              3.7.9-2
ii  libstartup-notification0  0.12-1
ii  libstdc++6                4.6.2-9
ii  libvpx0                   0.9.7.p1-2
ii  libx11-6                  2:1.4.4-4
ii  libxext6                  2:1.3.0-3
ii  libxrender1               1:0.9.6-2
ii  libxt6                    1:1.1.1-2
ii  zlib1g                    1:1.2.3.4.dfsg-3

Versions of packages xulrunner-10.0 suggests:
ii  libcanberra0  0.28-3
ii  libgnomeui-0  2.24.5-2

-- no debconf information