So far I see: TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_emptyTrash_dbViewWrapper.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_viewWrapper_imapFolder.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_viewWrapper_virtualFolderCustomTerm.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_offlineDraftDataloss.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_offlineDraftDataloss.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/news/test/unit/test_bug695309.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/news/test/unit/test_bug695309.js | test_newMsgs - [test_newMsgs : 48] 0 == 3 TEST-UNEXPECTED-FAIL | mailnews/news/test/unit/test_bug695309.js | _async_driver - TypeError: ex.stack is undefined at ../../../resources/asyncTestUtils.js:178 TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_viewWrapper_realFolder.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_viewWrapper_logic.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_viewWrapper_virtualFolder.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mail/base/test/unit/test_viewWrapper_virtualFolder.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_compactFailure.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_compactFailure.js | compact_with_exception - [compact_with_exception : 129] 2152857614 == 2147500037 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_compactFailure.js | _async_driver - TypeError: ex.stack is undefined at ../../../resources/asyncTestUtils.js:178 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_detachToFile.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_mimemaltdetach.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_nsMsgDBView_headerValues.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_testsuite_fakeserver_imapd_gmail.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_formatFileSize.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/base/test/unit/test_testsuite_fakeserver_imapd_list-extended.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_corrupt_database.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_cleanup_msf_databases.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_fts3_tokenizer.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_folder_logic.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_gloda_content_imap_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_addressbook.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_gloda_content_local.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_bad_messages.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_compaction.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_junk_imap_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_junk_local.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_junk_imap_online.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_messages_imap_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_messages_imap_online.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_messages_imap_online_to_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_mime_attachments_size.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_migration.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_intl.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_msg_search.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_messages_local.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_index_sweep_folder.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_noun_mimetype.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_query_core.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_query_messages_imap_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_query_messages_imap_online.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_smime_mimemsg_representation.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_query_messages_local.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_query_messages_imap_online_to_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_startup_offline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/db/gloda/test/unit/test_mime_emitter.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_chunkLastLF.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_autosync_date_constraints.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_bug460636.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_bccProperty.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_compactOfflineStore.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_copyThenMove.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_customCommandReturnsFetchResponse.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_dod.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_fetchCustomAttribute.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_dontStatNoSelect.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_filterCustomHeaders.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_gmailOfflineMsgStore.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_folderOfflineFlags.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_gmailAttributes.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapContentLength.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapAttachmentSaves.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapFlagChange.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapCopyTimeout.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapAutoSync.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapFolderCopy.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapHdrStreaming.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapHdrChunking.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapHighWater.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapHighWater.js | OnStopRunningUrl - [OnStopRunningUrl : 158] 2152398864 == 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapRename.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapStatusCloseDBs.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapSearch.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_listClosesDB.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_listSubscribed.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapUndo.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_imapStoreMsgOffline.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_localToImapFilterQuarantine.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_lsub.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_mailboxes.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_preserveDataOnMove.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_saveImapDraft.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_partsOnDemand.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_stopMovingToLocalFolder.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_trustSpamAssassin.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_syncChanges.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_autosync_date_constraints.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_copyThenMove.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_starttlsFailure.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_starttlsFailure.js | check_alert - [check_alert : 64] false == true TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_starttlsFailure.js | _async_driver - TypeError: ex.stack is undefined at ../../../resources/asyncTestUtils.js:178 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_saveTemplate.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_bug460636.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_bccProperty.js | xpcshell return code: 0 TEST-UNEXPECTED-FAIL | mailnews/imap/test/unit/test_customCommandReturnsFetchResponse.js | xpcshell return code: 0

False alarm? Error console says [stackFrame Date.prototype.toLocaleFormat is deprecated; consider using Intl.DateTimeFormat instead] That's due to bug 1332351 and bug 1299900?

Looks like this is tripping it up: https://hg.mozilla.org/mozilla-central/rev/22933322f28b#l4.14

Will be fixed by bug 1332351.