User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0 (Beta/Release) Build ID: 20130910160258 Steps to reproduce: Start Thunderbird. Version 24.0.1 Actual results: Not responsible for a while until gets to the message: A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: chrome://messenger/content/mailWindowOverlay.js:1401 Expected results: Do not know what is the effect of this script.

Do you use McAfee? All or mostly pop accounts?

No McAfee. many IMAP accounts (Gmail + 7 others) + POP(Hotmail + Yahoo)

Thanks. Please post the output of help | troubleshooting. Sanitize account info if you like to protect your account names, but please leave the basic descriptive info intact

Application Basics Name Thunderbird Version 24.0.1 User Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.0.1 Profile Folder Show Folder (Local drive) Application Build ID 20131010053258 Enabled Plugins about:plugins Build Configuration about:buildconfig Crash Reports about:crashes Memory Use about:memory Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account1 (imap) imap.googlemail.com:993 SSL passwordCleartext smtp.googlemail.com:465 SSL passwordCleartext true account2 (none) Local Folders plain passwordCleartext account3 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account4 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account5 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account6 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account7 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account8 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account9 (imap) just132.justhost.com:143 alwaysSTARTTLS passwordCleartext just132.justhost.com:465 SSL passwordCleartext true account10 (pop3) pop3.live.com:995 SSL passwordCleartext smtp.live.com:587 alwaysSTARTTLS passwordCleartext true account11 (pop3) pop.mail.yahoo.com:995 SSL passwordCleartext smtp.mail.yahoo.com:465 SSL passwordCleartext true Extensions Name Version Enabled ID Test Pilot for Thunderbird 1.3.9 true tbtestpilot@labs.mozilla.com Thunderbird Address Book Synchronisation Extension 1.9.105.1160 false synchronize@nokia.suite Important Modified Preferences Name Value browser.cache.disk.capacity 358400 browser.cache.disk.smart_size.first_run false browser.cache.disk.smart_size.use_old_max false browser.cache.disk.smart_size_cached_value 358400 extensions.lastAppVersion 24.0.1 font.internaluseonly.changed false font.name.monospace.el Consolas font.name.monospace.tr Consolas font.name.monospace.x-baltic Consolas font.name.monospace.x-central-euro Consolas font.name.monospace.x-cyrillic Consolas font.name.monospace.x-unicode Consolas font.name.monospace.x-western Consolas font.name.sans-serif.el Calibri font.name.sans-serif.tr Calibri font.name.sans-serif.x-baltic Calibri font.name.sans-serif.x-central-euro Calibri font.name.sans-serif.x-cyrillic Calibri font.name.sans-serif.x-unicode Calibri font.name.sans-serif.x-western Calibri font.name.serif.el Cambria font.name.serif.tr Cambria font.name.serif.x-baltic Cambria font.name.serif.x-central-euro Cambria font.name.serif.x-cyrillic Cambria font.name.serif.x-unicode Cambria font.name.serif.x-western Cambria font.size.fixed.el 14 font.size.fixed.tr 14 font.size.fixed.x-baltic 14 font.size.fixed.x-central-euro 14 font.size.fixed.x-cyrillic 14 font.size.fixed.x-unicode 14 font.size.fixed.x-western 14 font.size.variable.el 17 font.size.variable.tr 17 font.size.variable.x-baltic 17 font.size.variable.x-central-euro 17 font.size.variable.x-cyrillic 17 font.size.variable.x-unicode 17 font.size.variable.x-western 17 mail.openMessageBehavior.version 1 mail.winsearch.firstRunDone true mailnews.database.global.datastore.id 208faed8-8b13-4a27-a3bb-92c246a1b84 network.cookie.prefsMigrated true places.database.lastMaintenance 1382098182 places.history.expiration.transient_current_max_pages 104858 plugin.importedState true Graphics Adapter Description AMD Radeon HD 6570M/5700 Series Vendor ID 0x1002 Device ID 0x68c0 Adapter RAM 1024 Adapter Drivers aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Driver Version 12.104.0.0 Driver Date 3-28-2013 Direct2D Enabled false DirectWrite Enabled false (6.2.9200.16571) ClearType Parameters ClearType parameters not found WebGL Renderer false GPU Accelerated Windows 0 AzureCanvasBackend skia AzureFallbackCanvasBackend cairo AzureContentBackend none JavaScript Incremental GC 1 Accessibility Activated 0 Prevent Accessibility 0 Library Versions Expected minimum version Version in use NSPR 4.10 4.10 NSS 3.15.1 Basic ECC 3.15.1 Basic ECC NSS Util 3.15.1 3.15.1 NSS SSL 3.15.1 Basic ECC 3.15.1 Basic ECC NSS S/MIME 3.15.1 Basic ECC 3.15.1 Basic ECC

to summarize accounts: two pop, 7 imap to the same ISP, and one gmail. When do you get unresponsive script - only on startup? And, does problem reproduce if you have started in safe mode? https://support.mozillamessaging.com/en-US/kb/safe-mode

After restart in safe node I have got couple times similar message: A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: chrome://messenger/content/mailWindowOverlay.js:1374 Then after still the original message in normal and safe mode: A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: chrome://messenger/content/mailWindowOverlay.js:1401

I have 'Thunderbird Adress Book Synchronisation Extension 1.9.105.1160" (disables) installed, which does not work either. Could that be connected somehow? This extension is to synchronize the address book with Nokia Suite 3.8.48.

When is this happening? On startup?

On starup only i am getting one of the above error messages.

George, Does problem reproduce if you use https://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/23.0b1/win32/en-US/Thunderbird%20Setup%2023.0b1.exe ?? Backup your Thunderbird profile before using this older unreleased version. mozbackup is one good choice

I guess George is gone. In any event, if this does not happen when addon is not installed then the cause+fix rests with the author of the addon

George may be gone but I have a similar problem - for about a year! Downloading, opening, and deleting emails can take a minute apiece, and sometimes I get a notice like: Script: chrome://messenger/content/mailWindowOverlay.js:3177 The number changes. I have tried turning off all add-ons and extensions. I have a second email account, which works just fine. Security settings are the same for both. Any suggestions?

Hello, I'm using Thunderbird 42.0 (beta) right now, but have for a long while this error message each startup (German): "Ein Skript auf dieser Seite ist eventuell beschäftigt oder es antwortet nicht mehr. Sie können das Skript jetzt stoppen oder fortsetzen, um zu sehen, ob das Skript fertig wird. Skript: chrome://messenger/content/mailWindowOverlay.js:1429" I even created a new profile to make sure it doesn't depend on a Add-On or buggy settings. As I don't know how to get the log file, I made a Screenshot of the error console: http://abload.de/image.php?img=bugreportnqqru.jpg I'm using 14 IMAP Accounts, that is the only cause for very slow Startup and Error message.

I am using Thunderbird 38.4 on a machine running Vista. This happens nearly everytime Thunderbord starts.

(In reply to Jeffrey Evans from comment #12) > George may be gone but I have a similar problem - for about a year! (In reply to mysteryiii from comment #13) > Hello, > I'm using Thunderbird 42.0 (beta) right now, but have for a long while this > error message each startup (German): (In reply to Sam from comment #14) > I am using Thunderbird 38.4 on a machine running Vista. This happens nearly > everytime Thunderbord starts. (machines of vista vintage are probably underpowered these days, esp. with regard to installed memory) All, Do you have Thunderbird set to start automatically when Windows start? Do you have pop accounts? Does problem go away if you change Thunderbird to not check for new mail every N minutes? Does problem go away if you have done the following... Start *Windows'* safe mode with networking enabled - win10 http://windows.microsoft.com/en-us/windows-10/change-startup-settings-in-windows-10 - win8 http://windows.microsoft.com/en-us/windows-8/windows-startup-settings-safe-mode - win7 http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start-computer-safe-mode=windows-7 - XP http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx Still In Windows safe mode, start thunderbird in safe mode - http://support.mozillamessaging.com/en-US/kb/safe-mode

Going back to your first response, I WAS using McAfee. The problem was that I had more than one email account in Thunderbird. Blogs on McAfee had a number of people with the same problem - slow access to all but their primary email account. I solved the problem by switching to Norton. That probably doesn't explain all of the above, but it might be a clue.

> All, > Do you have Thunderbird set to start automatically when Windows start? No only manually start, problem occurs every start of Thunderbird. > Do you have pop accounts? No, all are IMAP. > Does problem go away if you change Thunderbird to not check for new mail > every N minutes? It only happens on start of Thunderbird. Not while it's in background or checking for mails afterward. > > Does problem go away if you have done the following... Start *Windows'* safe > mode with networking enabled > - win10 > http://windows.microsoft.com/en-us/windows-10/change-startup-settings-in- > windows-10 > - win8 > http://windows.microsoft.com/en-us/windows-8/windows-startup-settings-safe- > mode > - win7 > http://windows.microsoft.com/en-us/windows/start-computer-safe-mode#start- > computer-safe-mode=windows-7 > - XP > http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en- > us/boot_failsafe.mspx > Still In Windows safe mode, start thunderbird in safe mode > - http://support.mozillamessaging.com/en-US/kb/safe-mode No, still the same.