Bug#769941: libgstreamer-plugins-base1.0-0: Iceweasel crashes with "gst_app_src_set_size: assertion 'GST_IS_APP_SRC (appsrc)' failed"

[webmbackslash]

Hi, i have this bug too.
Attached is the valgrind output and it ended for me loading iceweasel
for a few moments and showing "killed".
This is the command i used:
valgrind --track-origins=yes --trace-children=yes --leak-check=full   iceweasel

I have:
ii  libgstreamer-plugins-bad0.10-0:amd64          0.10.23-7.1+deb7u1
        amd64        GStreamer development files for libraries from
the "bad" set
ii  libgstreamer-plugins-base0.10-0:amd64        0.10.36-1.1
             amd64        GStreamer libraries from the "base" set
ii  libgstreamer0.10-0:amd64                           0.10.36-1.2
                   amd64        Core GStreamer libraries and elements

and iceweasel 34.0

Same problem with gmail
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