== Currently investigated options ==
** '''Vacuum with a button''': discarded, we don't want users to have to rememeber they should vacuum.** '''Vacuum in background''': Possible for small databases, but for databases like places.sqlite that can take one hundred megabytes, is just not feasible** '''Vacuum on major upgrade''': This would be a good compromise, but has some drawback. First of all there is a feeling that making upgrades slower will cause users to delay them. Secondly it would be a Firefox only fix. Third it would put someting storage related in update code.** '''Vacuum on idle''': This is the currently taken in count solution.** '''Better vacuum support in SQLite''': this is the long term solution
=== Vacuum on idle ===
