How do I get rid of the dark theme and return to screen to white?

First, on the Settings page, I assume your Website Appearance setting is either System or Light, and not Dark. This article has the details on that setting: [[Change website appearance settings in Firefox]]. Google has its own theme settings. Under Settings > Other Settings, mine has Dark theme: Device default but it's also possible to choose On or Off. Could you check there? * https://www.google.com/preferences?hl=en&fg=1#tabVal=1 * https://www.google.com.au/preferences?hl=en&fg=1#tabVal=1

I still can't get rid of the black search screen. My themes were white until one day they turned black.