Problems w/editor in wordpress when using FireFox

Believe this has been asked before, but I can’t find the answer. I just installed Firefox browser and am trying to update one of my wordpress sites. When I go to write/post, the boxes come up fine, but I’m missing all the icons and the ability to post graphics inside the post.

Have noticed that if I go into the Firefox/Tools/Javascript Console option, there are a bunch of error messages listed.

Does anyone know of options that I may have to configure Firefox to work with WordPress?? Or is this browser just not compatable with WordPress??

thanks!

Bob