This can happen because Firefox creates a dedicated profile for each Firefox installation.

This page should list at least one profile and could list many.

The profile that Firefox is currently using will have this: This is the profile in use and it cannot be deleted.

You can click the Launch profile in new browser button to open another Firefox window using that profile.

If the other profile doesnt contain your missing data, simply close that new window.

Click the Set as default profile button for that profile and Firefox will use it automatically the next time you open Firefox.

However, data such as bookmarks, history or tabs will not be affected in any way.

Press Open Menu in the top right corner and click on at the bottom of the menu.

Press Refresh Firefox again when the confirmation window appears.

A window will pop-up asking you to choose the user profile, if there is more than one on your computer.

If there is only one user, Firefox Safe Mode window will appear.

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