Remove an extension
Removing an extension deletes it and its data from this device. Turning it off keeps it, ready to turn on again.
You tried a reading-list extension and don’t use it.
- Open Settings › Extensions.
- Under Installed, select the extension’s name.
- Under Remove, select Remove.
- In the dialog, select Remove.
Sval says Removed and the extension’s name.
Details
Section titled “Details”- To keep the extension but stop it from running, turn off its switch in the Installed list, or On on its page.
- Removing an extension on this device doesn’t remove it on your other devices.
- An extension Sval can’t remove has no Remove card on its page.
Related pages
Section titled “Related pages”© 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.