Who took a pee on Foxfire Start page; how get rid of yellow color?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

• Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
• Do NOT click the Reset button on the Safe Mode start window

• https://support.mozilla.org/kb/Safe+Mode
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

I'm not using the about:home page, but I see this yellow color as well when inspecting the page. It is caused by this CSS rule:

body.background-4871 {
    background: linear-gradient(to bottom, #FEE885, #FCDE3F) repeat scroll 0% 0% transparent;
}

You can see that if you right-click on the page and open the Inspector.

• https://developer.mozilla.org/Tools/Page_Inspector

Add code to the userContent.css file.

• http://kb.mozillazine.org/userContent.css

@-moz-document url(about:home){ body.background-4871 { background:none !important; }}

The customization files userChrome.css (user interface) and userContent.css (websites) are located in the chrome folder in the Firefox profile folder.

• http://kb.mozillazine.org/Editing_configuration