Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Synchronisation problems and many popstate-xx folders

  • 4 replies
  • 7 have this problem
  • 7 views
  • Last reply by Trabiss

more options

After the last update and to be honest moving my profile folder to another location so I can work on multiple computers I get a huge problem. Everytime when i start up Thunderbird I get many popstate-xx.dat folders.. Sometimes even more than 100 !! And I do have a few mail addresses there so i get hundreds of this files that is causing a problem and I also get a folder Inbox (File with conflict Windows xxx my computer name 2014-12-28 ) This is also coming every time.. I tried to delete some files inside the profile folder (when Thunderbird was closed) but nothing seems to help. This is seriously effecting my company and I am asking urgently for a solution. I see more people have this problem. Please help.

After the last update and to be honest moving my profile folder to another location so I can work on multiple computers I get a huge problem. Everytime when i start up Thunderbird I get many popstate-xx.dat folders.. Sometimes even more than 100 !! And I do have a few mail addresses there so i get hundreds of this files that is causing a problem and I also get a folder Inbox (File with conflict Windows xxx my computer name 2014-12-28 ) This is also coming every time.. I tried to delete some files inside the profile folder (when Thunderbird was closed) but nothing seems to help. This is seriously effecting my company and I am asking urgently for a solution. I see more people have this problem. Please help.

Modified by Wayne Mery

Chosen solution

The portable version and a large usb drive would do it, manual but effective.

The best approach is imap mail accounts, as by definition they synchronize. I have also heard of people running their own mail server on their local network to aggregate various mail accounts and act as the "shared" data-store

Read this answer in context 👍 0

All Replies (4)

more options

Are you using Thunderbird portable as well as about everyone else I have seen lately with popstat issues?

more options

Trabiss said

After the last update and to be honest moving my profile folder to another location so I can work on multiple computers I get a huge problem. Everytime when i start up Thunderbird I get many popstate-xx.dat folders.. Sometimes even more than 100 !! And I do have a few mail addresses there so i get hundreds of this files that is causing a problem and I also get a folder Inbox (File with conflict Windows xxx my computer name 2014-12-28 ) This is also coming every time.. I tried to delete some files inside the profile folder (when Thunderbird was closed) but nothing seems to help. This is seriously effecting my company and I am asking urgently for a solution. I see more people have this problem. Please help.

Matt said

Are you using Thunderbird portable as well as about everyone else I have seen lately with popstat issues?

Hey Matt,

Thjanks for the reply and sorry for my later response.. No I am not using a Portable version Only the normal (latest version) thunderbird. I found out what the cause and it seems Thunderbird cannot handle a shared profile very well. I tried to put my profile in dropbox and this way I was planning to work with two computers (office and home office). But unfortunately it gives a lot of headache. I placed back the profile in the default location and tried again (after removing a lot of postate-xx.dat files). Now it is working normal again but at this moment my mail is not synchronised anymore. I had to solve it now with one Thunderbird saying leave the mail on the server. It is a shame that it did not work but too much trouble forged me to it. If you have a great idea it would be very welcome.

more options

Chosen Solution

The portable version and a large usb drive would do it, manual but effective.

The best approach is imap mail accounts, as by definition they synchronize. I have also heard of people running their own mail server on their local network to aggregate various mail accounts and act as the "shared" data-store

more options

Matt said

The portable version and a large usb drive would do it, manual but effective. The best approach is imap mail accounts, as by definition they synchronize. I have also heard of people running their own mail server on their local network to aggregate various mail accounts and act as the "shared" data-store

Hey Matt,

I will check out the IMAP mail as this will be much better for me. Thanks for the support and please keep up the good work for the Thunderbird mail client.