OS10.6.8 Firefox 24.0 The new Yahoo mail shows no graphics. However, the new Yahoo mail displays correctly in Safari and Chrome. I believe this has to to with the settings for Javascript. Help me, please.

The settings for Javascript are either on or off, Fireefox 24 doesn't give you a option to turn off Javascript, unless you installed something like NoScript extension (or some other Javascipt blocking add-on)

If NoScript, then you need to use the View > Toolbars > Customize and drag the NoScript "Temp Allow All" button to the toolbar area to enable all enabled scripts (including Javascript) on that web page.

Under the Firefox Help menu is a option to restart with add-ons disabled to see if something you might have installed is causing your problem.

Reinstall Firefox or create another user account and run Firefox there to try to localize your issue.

I'm having no problem here on 10.6.8 in Firefox, Chrome or Safari, Yahoo Mail works perfectly.

Ah, ok, I see what you mean.

This is likely a issue with Yahoo.

See this

http://downrightnow.com/yahoomail