Thanks to the suggestion of Pscium, I removed the openjdk and installed the java jre. The
non trivial instructions do to this are at:
fedorasolved.org/browser-solutions/java-i386
I use the x86_64 version of firefox, so used the 64 bit version of java jre.
Unfortunately, to see the problem you need a Scottrade account. Once you login, there is
menu on the left hand side: Scottrader streaming quotes. If you use the openjdk the 3
major national stock market averages are messed up and there is a large blank space at the
top of the screen. With the java jre this is fixed.
Thanks to all that replied.
Regards,
Doug