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Thunderbird is taking several minutes to start up initially

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Rich Green
Rich Green
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When I start Thunderbird 128.5.2esr (32-bit) on my Windows 10 Home PC Version 10.0.19045 Build 19045, it has become increasingly slower recently. I have been using it for many years now and up until this year it would typically start in ~30 seconds.

I am accessing three separate POP email accounts and each of them has a number of subfolders with important stored messages. I thought that perhaps I had just too many folders and messages, so I removed hundreds of the stored messages and some of the sub folders. I routinely compact all accounts.

Today, it took over 8 minutes for Thunderbird to open. Incidentally, once it opens initially it seems to perform normally thereafter.

Is there something that I can do to speed things up?

Thanks in advance, Rich Green

When I start Thunderbird 128.5.2esr (32-bit) on my Windows 10 Home PC Version 10.0.19045 Build 19045, it has become increasingly slower recently. I have been using it for many years now and up until this year it would typically start in ~30 seconds. I am accessing three separate POP email accounts and each of them has a number of subfolders with important stored messages. I thought that perhaps I had just too many folders and messages, so I removed hundreds of the stored messages and some of the sub folders. I routinely compact all accounts. Today, it took over 8 minutes for Thunderbird to open. Incidentally, once it opens initially it seems to perform normally thereafter. Is there something that I can do to speed things up? Thanks in advance, Rich Green

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arlev
arlev
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It could be that TB is conflicting with some software that is running in the background. That isn't always too easy to work out, though. You could run the computer in safe mode and see if you still get the problem. If you don't, then it would indicate that TB is fine but the problem is as suggested. If that's the case, then close down all the background programs and services and relaunch TB. Introduce them one by one until a launch is affected. Then you'll know which program is causing the issue. It could also be TB itself - but it shouldn't be if it works in safe mode. If it's still a problem in safe mode then I would be inclined to back up all the data files and settings (the 'profile') and, first, over install (but that's a risk). Then, second, uninstall completely, reboot, and reinstall. Finally, uninstall completely, remove profiles, reboot, reinstall and reintroduce the profiles. You would need to relaunch TB after each stage. But don't miss any steps in the help file - https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-thunderbird-profiles - I don't want you to lose any data. And don't try any of this unless you feel competent to do it. Somewhere along the line, you should be able to determine where the problem lies. My bet would be on conflicting software.

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