open run prompt by pressing win+r and type %appdata% and hit enter then go into the folder named Mozillathen to Firefox and then to Profiles once you .\r
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Before proceeding backup your bookmarks. Go to the control panel, click add/remove or programs and features, locate Mozilla Firefox and remove/uninstall.\r
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How to Backup / Restore / Transfer User Profile in Windows As a computer tech you have to backup and restore window user profile data on a daily basis, .\r
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Mozilla® Thunderbird stores all your personal settings, such as bookmarks, passwords and extensions, in a profile folder on your computer. Watch this video to .