Vertical scroll keys don't work in Firefox 2.0.0.3 after inserting hyperlink

[novasource]

Here's what I did:
*Selected a couple of words in the middle of a paragraph.
*Hit the insert hyperlink button.
*Typed the hyperlink.
*Pressed Insert.
*Hit the X on the top right of the hyperlink box.
*Pressed up arrow 3 times.

The hyperlink got inserted correctly, but the whole process caused several errors, and the up arrow key did not cause the cursor to go up. Down arrow also didn't work. Left and right arrows worked fine.

Alt-tabbing to a different window and then coming back fixed the up and down arrow problems.

During this process, Firefox reported these warnings and errors:

Warning: Unknown property 'scrollbar-3dlight-color'. Declaration dropped.
Source File: ​http://cambre.biz/blog/wp-includes/js/tinymce/themes/advanced/css/editor_popup.css
Line: 7
See attached warnings.txt for more.

Problem went away after disabling WPG2 2.01 plugin.

I'm reopening. I am able to reproduce this error despite disabling the WPG (now 2.1) plugin and clearing my browser cache. I have no plugins installed besides Akismet. I am going to attach another file showing a different set of errors.

If someone has administrative access, please clean up my original post by deleting all the errors from it and converting the asterisked stuff into a UL.

Warnings generated by Firefox. (Please delete the warnings in the body of my original post.)

I forgot to mention that this error is kind of intermittent. I can reproduce it about 75% of the time.

The provided Firefox warnings have nothing to do with this issue. These are warnings about IE-specific CSS properties that Firefox does not support and will not render.

I can't reproduce, so closing.