Did you manually start Firefox in private browsing mode, or is the "Always use private browsing mode" option enabled? * [[Settings for privacy, browsing history and do-not-track]] ---- If you want to restore tiles you've previously deleted, # Type ''about:config'' in the address bar and press Enter. # Press the big button to bypass the warning. # In the search bar, paste ''browser.newtabpage.blocked'' # In the search results, right-click ''browser.newtabpage.blocked'' and choose '''Reset'''. ---- Your personal data and customizations are stored in your profile folder. This folder is normally not deleted, unless you check the "Remove my personal data…" option when uninstalling. * [[Profiles - Where Firefox stores your bookmarks, passwords and other user data]] * [[Uninstall Firefox from your computer]]