[CentOS] mozilla bug?

I had an embarrassing experience today, attempting to demonstrate that with gmail one can use the web interface when he must or use the pop/smtp interface or use both at the same time. The web interface would not work with mozilla-1.7.12-1.4.1.centos4. A quick check showed that firefox-1.0.7-1.4.1.centos4 has the same symptom -- that is, displays a page containing nothing but "Loading..." after user and password are entered. Konqueror works fine, as does mozilla-1.7.8-2 on an FC4 box I have.

I can find nothing on this list regarding this and will admit that since the common denominator appears to be the "1.4.1.centos4", I haven't checked mozilla bugzilla. Can someone confirm that my imagination hasn't run wild?