Copy the Profiles folder to a safe location.
You can find the profile folder by navigating to C:\Users\UserName\AppData\ Roaming\Mozilla\Firefox. Just to be safe, we recommend you create a backup of Firefox profile folder to a safe location and restore the same folder if you find that something is missing after reinstalling Firefox (very very unlikely though). However, we cannot guarantee the same for later versions! IMPORTANT: We have tested this method with Firefox v59 and works great.
#Download 64 bit firefox for windows 10 windows 10#
In short, you are not deleting Firefox profile data when you uninstall it.Ĭomplete the given directions to reinstall Firefox on Windows 10 and earlier versions without losing data. When you re-install Firefox on the same Windows installation again, Firefox starts using the data from that profile folder. The thing is that the Firefox uninstaller doesn’t delete data from your Firefox profile folder (which includes important data such as passwords, history, bookmarks, and cookies) and you need to manually delete the profile folder if you want to remove these data from your PC. The uninstaller no longer displays this option but doesn’t delete the profile data. The good thing is that you can reinstall Firefox on Windows 10 and earlier Windows versions without losing data.Īs you likely know, in older versions of Firefox (v30 or before), there would be “Remove my Firefox personal data and customizations” option while uninstalling the Firefox. Like other third-party web browsers, although reinstalling Mozilla Firefox browser for Windows operating system is easy, users don’t want to delete their saved passwords, bookmarks, browsing history, cookies, and other data while reinstalling Firefox on Windows.