I just created bug 660577 which consolidated five bug reports, all of which were complaining about Firefox 4 having high memory usage and/or OOM aborts on image-heavy pages.  This is a clear regression from Firefox 3.6, and appears to have two likely causes: The introduction of infallible new/new[] means Firefox 4 sometimes aborts where Firefox 3.6 … Continue reading Leak reports mini-triage, May 30, 2011