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Change how long extension updates wait

Sval holds each extension update it finds for a number of days before it installs it. The wait gives Mozilla time to find a harmful update and turn it off before it reaches you.

You’d rather have extension updates as soon as they’re out.

  1. Open Settings › Extensions.
  2. In Days to wait before installing extension updates, type a number of days.
  • The wait starts at 7 days. 0 installs updates right away. The longest wait is 365 days.
  • An empty field, or anything that isn’t a number of days, goes back to 7.
  • Your other devices use the same number.
  • An update Sval is holding shows on the extension’s page, where Update now installs it at once. See Install an extension update now.

© 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.