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You can’t find your bookmarked websites and installed add-ons in Firefox. All your bookmarks, add-ons and custom settings lost/vanished/disappeared. In other words, Firefox opened like you performed a clean installation of Firefox in your computer. You installed several add-ons (extensions, themes, dictionaries, language packs) to add new functionality and features to Firefox.Įverything was working perfectly and suddenly one day when you launched Firefox: You added your favorite websites and webpages as bookmarks for quick and easy access. You customized Firefox Settings (also known as Options or Preferences) and UI according to your requirements. You were using Mozilla Firefox web browser in your computer since few days, months or years without any problem.
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