Hi tonyroder, was it a theme that you installed from the Add-ons site which created the yellow background (or was it yellow text?), or did you use the Firefox Color extension, or did you have some rules in a userChrome.css file?

As I best remember, jscher, it might have been when I transferred my Firefox settings from a desktop to a laptop, and modified an FF file according to instructions I read on this forum some two years ago, I wish I could be more precise than that, but....

Let's start with themes since those are the simplest. For example:

https://addons.mozilla.org/firefox/addon/yellow-to-yellow/

Thanks jscher, but at the risk of looking a gift horse in the mouth, it's the wrong yellow. The one I was using was lighter, brighter, friendlier.

Hi tonyroder, if you have time to look on the site, that would be great.

I did search through this site, but no joy, alas.

Do you want to try the Firefox Color extension? https://addons.mozilla.org/firefox/addon/firefox-color/