ldd /usr/lib/firefox-3.0.10/crashreporter
linux-gate.so.1 => (0xb7eec000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb7eb0000)
libdl.so.2 => /lib/libdl.so.2 (0xb7eac000)
libgtk-x11-2.0.so.0 => /usr/lib/libgtk-x11-2.0.so.0 (0xb7b46000)
libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0xb7b2d000)
libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0xb7aab000)
libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0xb7a94000)
libm.so.6 => /lib/libm.so.6 (0xb7a6d000)
libpangocairo-1.0.so.0 => /usr/lib/libpangocairo-1.0.so.0 (0xb7a64000)
libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0xb7a28000)
libcairo.so.2 => /usr/lib/libcairo.so.2 (0xb79c8000)
libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0xb79c5000)
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0xb798b000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb78bd000)
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0xb78b9000)
libgconf-2.so.4 => not found
libORBit-2.so.0 => not found
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb77d3000)
libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb77c7000)
etc.

That has never been different with past versions of firefox in Slackware. Firefox will work fine regardless.
The reason for those "not found" is that the Mozilla Corporation builds firefox on Gnome systems and because of that, the resulting binaries inherit certain dependencies that Slackware does not fulfill.
The warnings are harmless though.

Eric

That's for crashreporter ... a useless appendix of FF. You know the thing that pops up when FF crashes ... or sometimes it does sometimes it doesn't ... and you just click send.