User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a2pre) Gecko/20070108 Minefield/3.0a2pre Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a2pre) Gecko/20070108 Minefield/3.0a2pre I see a relatively consistent, but still somewhat intermittent, crash when I go from one URL to another in Firefox. The problem seems to be related to accessibility and happens regardless if I run an assistive technology or not. Here's a typical incident and stack trace I get when this happens (several times an hour): http://talkback-public.mozilla.org/search/start.jsp?search=2&type=iid&id=TB28179697Z Stack Signature 0x00000061 e9e03e85 Product ID FirefoxTrunk Build ID 2007010804 Trigger Time 2007-01-09 05:32:27.0 Platform LinuxIntel Operating System Linux 2.6.17-10-generic Module URL visited User Comments Since Last Crash 5 sec Total Uptime 7 sec Trigger Reason SIGSEGV: Segmentation Fault: (signal 11) Source File, Line No. N/A Stack Trace 0x00000061 nsQueryInterface::operator() nsCOMPtr_base::assign_from_qi() nsAccessible::Shutdown() nsHTMLTextFieldAccessible::Shutdown() nsAccessNode::ClearCacheEntry() nsBaseHashtable<nsVoidHashKey, nsCOMPtr<nsIAccessNode>, nsIAccessNode*>::s_EnumStub() PL_DHashTableEnumerate() nsAccessNode::ClearCache() nsDocAccessible::Shutdown() nsDocAccessible::Destroy() nsRootAccessible::HandleEventWithTarget() nsRootAccessibleWrap::HandleEventWithTarget() nsRootAccessible::HandleEvent() nsEventListenerManager::HandleEventSubType() nsEventListenerManager::HandleEvent() nsEventTargetChainItem::HandleEvent() nsEventTargetChainItem::HandleEventTargetChain() nsEventDispatcher::Dispatch() nsDocument::DispatchEventToWindow() nsDocument::OnPageHide() DocumentViewerImpl::PageHide() nsDocShell::FirePageHideNotification() nsDocShell::CreateContentViewer() nsDSURIContentListener::DoContent() nsDocumentOpenInfo::TryContentListener() nsDocumentOpenInfo::DispatchContent() nsDocumentOpenInfo::OnStartRequest() nsHttpChannel::CallOnStartRequest() nsHttpChannel::ProcessNormal() nsHttpChannel::ProcessResponse() nsHttpChannel::OnStartRequest() nsInputStreamPump::OnStateStart() nsInputStreamPump::OnInputStreamReady() nsInputStreamReadyEvent::Run() nsThread::ProcessNextEvent() NS_ProcessNextEvent_P() nsBaseAppShell::Run() nsAppStartup::Run() XRE_main() main() libc.so.6 + 0x158cc (0xb73868cc) Reproducible: Always Steps to Reproduce: 1. Enable a11y. 2. Run Firefox. 3. Move to a different page Actual Results: Crashes periodically (several times an hour) Expected Results: Should never crash.

See also bug 366434 (https://bugzilla.mozilla.org/show_bug.cgi?id=366434) - it may be the source of this crasher.

Sorry...in observing another bug, I noticed someone replied to it talking about my typo in this bug. I meant bug 366435 (https://bugzilla.mozilla.org/show_bug.cgi?id=366435).

same core stack with bug 366500, and they're both about pagehide. mark as duplicate