Hello, I have been experiencing issues with the rendering of the navigation menu to the left of https://www.youtube.com/. This problem only occurs when I am signed into an account. I have not been able to replicate it when not signed into YouTube. Normally when I power on my computer and open YouTube, it renders just fine until I refresh the page or click a video then go back to the home page So far I have tried to: *Refresh the page *Clear all cookies, cache and data *Disable all my extensions *Go into incognito and sign into either one of my accounts (problem occurred on both) *Relaunch Firefox and restart my computer *Check for updates on my computer and for Firefox (everything is up to date) *Try the beta of Firefox (uninstalled the beta once I found the same problem) Unfortunately, non of these solutions have worked and I did test this in two different browsers (edge and chrome) where it successfully rendered it both times. I have included a screenshot that shows what I mean by not rendering. Thank you for your time