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Open a private window

A private window keeps nothing after you close it. Each private window is a session of its own.

You want to check a Codeberg page signed out, without signing out of your own account.

  1. Press ⇧⌘N (Ctrl+Shift+N on Windows and Linux).

A private window opens. The top of its panel reads “Private window. Tabs here aren’t saved or synced.”

In the menu bar, File › New Private Window does the same.

  • A private window can’t see another private window’s cookies or site data, or those of your Workspaces.
  • Nothing about its tabs is saved to disk or synced.
  • Choices you make for a site in a private window last until you close it. Settings opened there can’t change anything Sval keeps, such as an extension’s switch for a site.
  • When you close it, its cookies and site data are deleted.
  • A sign-in window a page opens shares that page’s session, so signing in works.
  • A private window has one Workspace of its own. It has no list of Workspaces, no Favorites, and no pins.
  • Tabs and groups work as in any window.
  • You can’t move a tab into or out of a private window.
  • Files you download stay on your computer.

© 2026 Ellm Tree, Inc. Sval is not officially associated with Mozilla or its products. Firefox is a trademark of the Mozilla Foundation in the US and other countries.