Ah, it is about your add on! The add on can control the homepage. If you want to change it white again, just choose another theme of your browser! If you can have a screen shot it will helping me more to trouble shooting ur problem

I did not change my add-on and it just went black today. 1st is how it did look for years then today it was the 2nd one. So who chose to change the setting on them?

As you discovered, Firefox 96 now harmonizes more parts of Firefox with your toolbar theme. When the text color on your background tabs is light/white, it triggers Firefox to use a dark background on menus, the sidebar, the Library window, and various built-in pages. It also signals sites that you have a dark theme preference.

Are you saying that Firefox automatically switched from the theme on the left (cherry blossoms) to the theme on the right (horses)?

No I can't find theme I had on it. It was white back ground tell this morning and it just went to black on its own as I started the computer this morning. The one on the right was the only theme I found that went to white to show with it was and what it went to.

Hmm, there are so many themes, it can be hard to track down a specific one.

Anyway, for now, we don't have any way to have a theme with white lettering up on the tab bar combined with a light theme in the browser. Hopefully that option will be added in a future update.

Will I found a theme that is white. It just seams funny that the theme I had for years went from white to black over night.

Thanks for the help