Package: icedove Version: 3.1.10-1 I also just hit this bug. Icedove last started fine 2 days ago. Since then the only related change is the upgrade of xul-ext-firetray from 0.2.8-2 to 0.2.8-3, which must have started it. This is an i386 testing/unstable mix. Many thanks to Jonathan for the workaround (running Icedove that way once fixes it). I'm writing this mail from my usual Icedove thanks to you. I confirm the description from Jonathan (Message #119). More precisely, on this machine, icedove seems to break if and only if: While glibc 2.13 is installed, icedove is [re]installed, or an extension (maybe not any) is manipulated (that is installed, upgraded or removed). glibc 2.13 migrated to testing 3 days ago. 2 days ago a testing user reported http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=626812 "icedove: Icedove crash on start with libimgicon.so undefined symbol NS_GetServiceManager which has to be related. https://bugs.launchpad.net/ubuntu/+source/seamonkey/+bug/759406 "seamonkey 2.0.13 does not start, missing libxpcom.so and libxpcom_core.so (Natty, x86_64)" was reported on April 13th against Seamonkey and sounds a lot like #626812. --- System information. ---Architecture: i386 Kernel: Linux 2.6.38-2-686-bigmem Debian Release: wheezy/sid 990 testing security.debian.org 990 testing ftp.ca.debian.org 500 unstable ftp.ca.debian.org 1 experimental ftp.ca.debian.org --- Package information. --- Depends (Version) | Installed =============================================-+-================= fontconfig | 2.8.0-2.2 psmisc | 22.13-1 debianutils (>= 1.16) | 3.4.4 libasound2 (>> 1.0.18) | 1.0.23-3 libatk1.0-0 (>= 1.12.4) | 2.0.0-1 libc6 (>= 2.3.6-6~) | 2.13-4 libcairo2 (>= 1.8.8) | 1.10.2-6 libdbus-1-3 (>= 1.0.2) | 1.4.8-3 libffi5 (>= 3.0.4) | 3.0.9-4 libfontconfig1 (>= 2.8.0) | 2.8.0-2.2 libfreetype6 (>= 2.2.1) | 2.4.4-1 libgcc1 (>= 1:4.1.1) | 1:4.6.0-2 libgdk-pixbuf2.0-0 (>= 2.22.0) | 2.23.3-3 libglib2.0-0 (>= 2.24.0) | 2.28.6-1 libgtk2.0-0 (>= 2.24.0) | 2.24.4-3 libhunspell-1.2-0 (>= 1.2.11) | 1.2.14-4 libjpeg62 (>= 6b1) | 6b1-1 libnspr4-0d (>= 4.7.0~1.9b1) | 4.8.7-2 libnss3-1d (>= 3.12.6) | 3.12.9.with.ckbi.1.82-1 libpango1.0-0 (>= 1.14.0) | 1.28.3-6 libpixman-1-0 (>= 0.11.2) | 0.21.8-1 libpng12-0 (>= 1.2.13-4) | 1.2.44-2 libsqlite3-0 (>= 3.6.5) | 3.7.6.2-1 libstartup-notification0 (>= 0.11) | 0.11-2 libstdc++6 (>= 4.1.1) | 4.6.0-2 libx11-6 | 2:1.4.3-1 libxrender1 | 1:0.9.6-1 libxt6 | 1:1.1.1-1 zlib1g (>= 1:1.1.4) | 1:1.2.3.4.dfsg-3 Recommends (Version) | Installed ==================================-+-=========== myspell-en-us | OR hunspell-dictionary | OR myspell-dictionary | Suggests (Version) | Installed =====================================-+-=============== ttf-lyx | 2.0.0~rc3-2 libgssapi-krb5-2 | 1.9+dfsg-1+b1 libdbus-glib-1-2 (>= 0.78) | 0.92-1 libgconf2-4 (>= 2.27.0) | 2.28.1-6 libgnomevfs2-0 (>= 1:2.17.90) | 1:2.24.4-1 libnotify1 (>= 0.5.0) | 0.5.0-2 libnotify1-gtk2.10 | |