There's some really interesting discussion going on in https://bugzilla.mozilla.org/show_bug.cgi?id=961209
and the referenced bugs, particularly around how to efficiently store and query for URIs. There are probably lessons here that apply to browser.db, which is a multi-megabyte DB on everyday profiles. Take a look! _______________________________________________ mobile-firefox-dev mailing list mobile-firefox-dev@mozilla.org https://mail.mozilla.org/listinfo/mobile-firefox-dev