This bug was filed from the Socorro interface and is report bp-a5d9dae1-46f8-4289-802a-af1832120105 TB10 (brian) ============================================================= another one with "bool" in signature. all crashes version 10 or newer. Multiple OS, so not all one person. only one TB10.0b4 crash. So guessing it won't develop into anything huge upon release of v10 0 xul.dll nsImapMailFolder::CopyMessagesOffline mailnews/imap/src/nsImapMailFolder.cpp:7248 1 xul.dll nsImapMailFolder::CopyMessages mailnews/imap/src/nsImapMailFolder.cpp:7499 2 xul.dll nsMsgCopyService::DoNextCopy mailnews/base/src/nsMsgCopyService.cpp:355 3 xul.dll nsMsgCopyService::DoCopy mailnews/base/src/nsMsgCopyService.cpp:296 4 xul.dll nsMsgCopyService::CopyMessages mailnews/base/src/nsMsgCopyService.cpp:568 bp-57ecdea5-d722-478b-9d48-6bf6a2120101 TB12

this is dup of bug 471492. The parameter is changed by PRBool -> bool conversion.