The fact that ldd /usr/lib/seamonkey-2.0.13/components/libsuite.so can't find libxpcom.so is a red herring; that library lives in /usr/lib/seamonkey-2.0.13 which isn't in the normal library path, and ldd shows the same result even on a system where seamonkey is working.
I ran LD_DEBUG=all seamonkey and captured the output (see attachment). It shows NS_GetServiceManager is found in libxpcom.so when libimgicon.so is loaded, but for some reason when libsuite.so is loaded, libxpcom.so is never even searched. ** Attachment added: "seamonkey-ld-debug-log.bz2" https://bugs.launchpad.net/ubuntu/+source/seamonkey/+bug/759406/+attachment/2114670/+files/seamonkey-ld-debug-log.bz2 ** Changed in: seamonkey (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/759406 Title: seamonkey 2.0.13 does not start, missing libxpcom.so and libxpcom_core.so (Natty, x86_64) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs