For several months I've had a problem with it lagging or becoming unresponsive for a minute or so if i had the bad idea to erase messages quickly with the delete button or if i was trying to do anything in TB while a notification was displaying.

I had assumed it was lightning but I loved the agenda so much that I decided to live with this. I shortened the notification display and made sure to either select several messages with shift or to pause a sec between each delete with the keyboard.

However, since 31.1.2. I have the exact problem as OP. I'm also on 8.1. For two days now, the agenda does not synch with Google agenda and does not keep anything I enter in it directly either. So I decided the trouble was not worth it anymore and desinstalled ALL the plugins. Only to realize that the problem was not the plugin but TB itself.

This is miserable. I get Script : chrome://messenger/content/mailWindow.js:174 thunderbird Too.

What to do?

What is your anti-virus software?

I use Eset.

Petille,

I think it would be better if you raise a new thread for your problem.

christ1, I don't use one. Only security program i have is Comodo Firewall (just the firewall).

Try to start *Windows* in safe mode with networking enabled.

- Win8 http://windows.microsoft.com/en-US/windows-8/windows-startup-settings-including-safe-mode

- Win7 http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode

- 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.

- https://support.mozilla.org/en-US/kb/safe-mode

Does the problem go away?

OK tried the safe mode and that does not change anything. It still takes 30 seconds to have TB responsive

Yesterday, I disabled Eset anti spam anti phishing and protocol filtering for 10 min.

Immediately, the message Script : chrome://messenger/content/mailWindow.js:174 thunderbird stopped showing up and deleting quickly with keyboard has not been causing any freeze since then, even if Eset is back to normal. And messages have not reappeared after being deleted.

Also, since Windows auto update, Lightning is working again, sync properly with gmail so I've decided to be happy that Agenda and my fav email client work and be patient when it opens

With 32 g RAM I am not used to wait for apps...

Hey christ1, the same problem occurs in safe mode for windows 8.1 and windows 7 and safe mode in thunderbird.

What is the size of your mail files? Are you compacting folders on a regular basis?

@christ1 they are mainly IMAP email accounts (Gmail). I have 5 IMAP accounts and 1 POP.

The 2 main email accounts have 2300~ emails each at the moment with size on disk being 611MB and 576MB for them. The other IMAP accounts have less than 1000 emails.

My POP account has 40 emails, with size on disk being less than 1 MB.

I understand compacting doesn't do much for IMAP accounts, but more for POP so I haven't been doing any compacting. But I compacted them anyway after your post and no change in startup.

I also repaired the folder on each of the accounts, but no difference in startup.

Some of the larger attachments on some of the emails stand at 21mb and less. My sync settings are set to only sync the past week emails and past 30 days of emails for my large accounts. "Keep messages for this account on my computer" option is turned off for ALL accounts.

I hope this info helps?

I wouldn't expect the size of the mail files to be a problem in the first place. However, are you accumulating messages in Inbox? If so, move them to a different folder.

@christ1, since I moved to a gmail address many many years ago, I have not been deleting email msgs which would be to keep my inbox relatively small. That was in the days of POP. So I don't delete emails.

Are you thinking the number of emails in my inbox might be a contributing factor?

So create a new folder and move older emails from my inbox to that folder? Want me to try this on my larger accounts that have over 2000 emails in the inbox? Or all my accounts?

It's not about deleting messages, but moving messages out of Inbox. It's best practice to keep your Inbox as clean as possible. Inbox is most susceptible for corruption, and it's read first thing when Thunderbird starts and is receiving new mail. Also see http://kb.mozillazine.org/Keep_it_working_-_Thunderbird

News - new news...

docarchy

Please try this. In Options->Advanced->Config editor, find these 2 preferences with these values: mail.db.idle_limit 300000 mail.db.max_open 30

Are they at those value? Then, try to increase mail.db.max_open to 10000 or more than the number of your folders in total.

Wayne Mery said

News - new news... docarchy Please try this. In Options->Advanced->Config editor, find these 2 preferences with these values: mail.db.idle_limit 300000 mail.db.max_open 30 Are they at those value? Then, try to increase mail.db.max_open to 10000 or more than the number of your folders in total.

Since my last post, the issue resolved itself, all on it's own, on my Windows 8.1. But continued on my Windows 7.

But now the problem returned again on my Windows 8.1 today.

For your instructions, yes those values are as you said they are. I changed max_open to 10000, but the start up still took approximately 30 seconds to open.

This time the error line has moved to: Script: chrome://messenger/content/mail-offline.js:34

christ1 said

It's not about deleting messages, but moving messages out of Inbox. It's best practice to keep your Inbox as clean as possible. Inbox is most susceptible for corruption, and it's read first thing when Thunderbird starts and is receiving new mail. Also see http://kb.mozillazine.org/Keep_it_working_-_Thunderbird

Maybe I could create a new thunderbird profile, add each imap account 1 by 1, restart after each and see when the start-up time is affected? Could be a particular account or # of folders, or # of emails. I'll give it a try.

If https://support.mozilla.org/en-US/questions/1025125#answer-641195 did not help you, then I offer that a developer is working on startup performance activity. This work make take a few weeks to become available. So I suggest we wait for the results of that work.

Wayne Mery said

If https://support.mozilla.org/en-US/questions/1025125#answer-641195 did not help you, then I offer that a developer is working on startup performance activity. This work make take a few weeks to become available. So I suggest we wait for the results of that work.

docarchy, please install 38.0b1 from beta link at http://www.mozilla.org/en-US/thunderbird/channel/

Is the problem gone?

Wayne Mery said

docarchy, please install 38.0b1 from beta link at http://www.mozilla.org/en-US/thunderbird/channel/ Is the problem gone?

Hi Wayne,

Installed the beta in a new folder (C:\Program Files (x86)\Mozilla Thunderbird2). It opened much faster (a few seconds) on first start up, but after closing and opening again, it went back to opening in about 25 seconds.

This was on my Windows 7. Will install on Windows 8 next.

Should I try working with a new profile and adding my accounts again to see if it's the profile that is corrupt?

Edit: Installed on my Windows 8.1 and same experience as on Windows 7. On first start, Thunderbird open instantly. Closing and then reopening thunderbird and it's back to 25 - 30 seconds.