I am trying to switch back to Firefox after having used it once before. However, I am unable to use the browser at all. I have to run it with administrator permissions for it to even open, and when it does open, I am met with a completely blank grey screen with nothing but my bookmarks. I cannot click any bookmarks, nor can I click anything on the sidebar [passwords, account, etc.] I can't search anything, and I can't use direct links. I have uninstalled four times using Revo Uninstaller, removed all lingering data all four times, refreshed the browser, refreshed my account, changed my account password, run troubleshooting mode, updated my computer, updated my drivers, and updated the app. Absolutely nothing has worked, and I am still unable to use it. I'm not sure what else I can do.