On old and now obsolete systems this is maybe 20 seconds? I invoke the package manager to update just ff. It downloads, gets extracted, then I'm restarting it.

On old and now obsolete systems this is maybe 20 seconds? I invoke the package manager to update just ff. It downloads, gets extracted, then I'm restarting it. It does it's thing, and restores my tabs. After killing it with -9 right before the update.