This is a maintenance and bugfix update for firefox 3.5.x: * Bug 468562 - ASSERTION: Inserting multiple children without flushing * Bug 521750 - Put a runtime NS_IsMainThread check in nsCycleCollector::Suspect2 and Forget2 * Bug 525326 - Crashes in gif decoder [@ xul.dll@0x348945][@ xul.dll@0x348864][@nsGIFDecoder2::GifWrite] * Bug 525276 - crashes [@ nsDocument::RegisterNamedItems] * Bug 524462 - ...