$ rpm -qa '*seamonkey*'
seamonkey-psm-1.1.18-alt1
seamonkey-plugins-common-1.1.18-alt1
seamonkey-ru-1.1-alt1
seamonkey-spellchecker-1.1.18-alt1
seamonkey-1.1.18-alt1
seamonkey-mail-1.1.18-alt1
seamonkey-enigmail-1.1.18-alt1
$ 

How to reproduce:

$ seamonkey http://www.svobodanews.ru/
LoadPlugin: failed to initialize shared library /usr/lib/browser-plugins-npapi/nsdejavu.so [/usr/lib/browser-plugins-npapi/nsdejavu.so: undefined symbol: XtShellStrings]
/usr/lib/seamonkey-1.1.18/run-mozilla.sh: line 197: 23911 Segmentation fault      (core dumped) $RUNS
$ 

(After several seconds, it crashes.)