Whenever I open Firefox, it refuses to load. I got this from Konsole:

/usr/lib/firefox/firefox-bin: /usr/local/lib/libnss3.so: version `NSS_3.9.3' not found (required by /usr/lib/firefox/firefox-bin)
/usr/lib/firefox/firefox-bin: /usr/local/lib/libnss3.so: version `NSS_3.10' not found (required by /usr/lib/firefox/firefox-bin)
/usr/lib/firefox/firefox-bin: /usr/local/lib/libnss3.so: version `NSS_3.9.2' not found (required by /usr/lib/firefox/firefox-bin)
/usr/lib/firefox/firefox-bin: /usr/local/lib/libnss3.so: version `NSS_3.11.1' not found (required by /usr/lib/firefox/firefox-bin)

If anybody can help me, I'd appreciate it.

I know that Firefox needs libnss to run (it's some netscape portable run time or something like that), so you can go into Software Management in yast and reinstall it.
I hope that works