Hibernated groups

You may hibernate a group by clicking hibernate in the groups title in the group bar. If a group is hibernated, it will no longer appear in the group bar, but you can still send tabs to a hibernated group.

A list of hibernated groups can be seen from the group bar, so you can recover any such group later.

Hibernated groups are stored globally (not per window) so are not lost when a window is closed. However, this means they are not saved by the browser session manager as it doesn't support custom global data, only per window or per tab, and are saved by tabgroups manager on shutdown or when manually or periodically saved.