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A Waterfox profile stores all of your important data, such as your bookmarks, history, cookies, and passwords. This article explains how to copy the files to a new profile, lists important files in the profile and describes what information is stored in these files. To sync and share data among multiple profiles and devices, see How do I set up Sync on my computer? . To switch to another profile to recover missing data and settings, see Recover user data missing after Waterfox update . Note Because your preferences and extensions often cause problems, this article does not explain how to copy these between profiles. If you follow the steps in this article, you will have to reinstall your extensions and reconfigure your Waterfox preferences. Back up your current profile Before starting it is recommended that you make a complete backup of your existing Waterfox profile in case something goes wrong. Please read the Back up and restore information in Waterfox profiles ...

All of the changes you make in Waterfox, such as your home page, what toolbars you use, extensions you have installed, saved passwords and your bookmarks, are stored in a special folder called a profile . Your profile folder is stored in a separate place from the Waterfox program so that, if something ever goes wrong with Waterfox, your information will still be there. It also means that you can uninstall Waterfox without losing your settings and you don’t have to reinstall Waterfox to clear your information or troubleshoot a problem. How do I find my profile? Click the menu button , click Help and select Troubleshooting Information. The Troubleshooting Information tab will open. Under the Application Basics section next to Profile Folder , click Open Folder. Your profile folder will open. Note If you are unable to open or use Waterfox, follow the instructions in Finding your profile without opening Waterfox . Finding your profile without opening Waterfox ...

  Profiles keep your Waterfox data separate (bookmarks, passwords, settings, and extensions). Use the Profile Manager to create, rename, remove, or switch profiles. About profiles Each profile has its own data and settings. Multiple profiles let you separate work and personal browsing or test changes safely. Waterfox uses a dedicated profile per installation . Switching channels or downgrading creates or requires a different profile to protect your data. Open the Profile Manager Option A — From about:profiles Type about:profiles in the address bar and press Enter. The About Profiles page opens. Click Create a New Profile to add one. Use the Launch profile in new browser button to open another profile. Option B — Command line (Waterfox closed) Windows: Press Windows+R, type waterfox.exe -P and press Enter. macOS: Quit Waterfox, open Terminal, run /Applications/Waterfox.app/Contents/MacOS/waterfox -P . Linux: Quit Waterfox, run waterfox -...