Step 2: Right-click on Mozilla Firefox entry and then click Uninstall option.įollow the on-screen instructions to remove the Firefox from your PC. Step 1: In the Start menu search field, type Appwiz.cpl and then press Enter key to open Programs and Features window. 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. Complete the given directions to reinstall Firefox on Windows 10 and earlier versions without losing data.
