![Firefox logo](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/products/2020-04-14-08-36-13-8dda6f.png)
All of the menu bars and backgrounds are red, it happened after I installed a flash player. I can give a screenshot if you need me to.
Everything that is not the browser display field has turned red-- scrollbars, information bar at the bottom, and the toolbars at the top. The tabs are different shades of red except the Active one, which is still gray.
I was updating my Adobe Flash player when this all of a sudden happened. It does not seem to be affecting my using Firefox, just I would like to change it back. Plus it might be a symptom of something else.
I am going to try and uninstall the Flash Downloader plugin.
Wšykne wótegrona (3)
I got rid of the flash downloader, but everything is still red. You can see the explorer window on the left of the attached screenshot is still the same color gray, but Firefox has all turned red.
That is a Persona (light-weight theme). To stop it from displaying switch to the default theme, see using themes with Firefox.
That got it, thanks! Learn something new every day :)