My Firefox browser on my Mac book air is messed up. When looking at the webpages such as YouTube, Netflix or any other site, the page has a weird layout and the color scheme is messed up. Also, when I open a new window, the search bar on the browser page is partially missing. (see image below) I have tried many things such as restarting Firefox, running in troubleshoot mode, making sure the webpage view is in Basic Page Style, clearing the cache and cookies, and nothing is working. When I go to safari, everything is normal but when I come back to Firefox, nothing works. Based off of the screenshots below, it almost looks like it's an internal issue in the CSS or HTML. I'm definitely not an expert on these things but I could really use some help. Please advise ASAP as I need this for school soon. Thank you!