This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Thunderbird (and FF) error message and now I have real problems

  • 3 replies
  • 2 have this problem
  • Last reply by kerzisg

more options

so I am working through downloading python and chromedriver and dealing with PATH issues re: selenium, pip, etc when I start getting first an email error message:

Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window.

I do not have thunderbird open. i confirm in task manager. don't think anything of it. then firefox starts doing the same thing.

at this point, I am already uninstalling the other software above to try a new, clean install and I am required to restart.

after restart, weird stuff. half my desktop icons and explore files are now faded. neither TB or FF will work. I use chrome, see a bunch of the messages on here to first look at uninstalling and reinstall. Do it. Doesn't work. Next step - run down through appdata, roaming, etc to get to the profiles folders and delete the "profile.lock" file

Yes. This works for FF but WTH!!! I open TB and every email is gone. I go thru the process to zip my profile and import. Nope. Doesn't work. So i unzip the file into a thumbdrive and import using eml method.

TB does not keep my original format, duplicates all folders, and anything older than early 2023 is there but there is no longer a subject, sender, etc

I take a break. Today I am back at it. I cannot access new emails at all. I cannot delete the folders so I make a backup folder, uninstall and reinstall TB and the same thing.

How can I reset TB, import the old emails?

What is the importance if anything of profile.lock?

Any thoughts if working through issues on python, etc caused this?

so I am working through downloading python and chromedriver and dealing with PATH issues re: selenium, pip, etc when I start getting first an email error message: Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window. I do not have thunderbird open. i confirm in task manager. don't think anything of it. then firefox starts doing the same thing. at this point, I am already uninstalling the other software above to try a new, clean install and I am required to restart. after restart, weird stuff. half my desktop icons and explore files are now faded. neither TB or FF will work. I use chrome, see a bunch of the messages on here to first look at uninstalling and reinstall. Do it. Doesn't work. Next step - run down through appdata, roaming, etc to get to the profiles folders and delete the "profile.lock" file Yes. This works for FF but WTH!!! I open TB and every email is gone. I go thru the process to zip my profile and import. Nope. Doesn't work. So i unzip the file into a thumbdrive and import using eml method. TB does not keep my original format, duplicates all folders, and anything older than early 2023 is there but there is no longer a subject, sender, etc I take a break. Today I am back at it. I cannot access new emails at all. I cannot delete the folders so I make a backup folder, uninstall and reinstall TB and the same thing. How can I reset TB, import the old emails? What is the importance if anything of profile.lock? Any thoughts if working through issues on python, etc caused this?

All Replies (3)

more options

I'll add when I try to check for new email today the error msg I get is:

Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enought disk space to copy the mailbox

Helpful?

more options

You deleted the profile with the mail and account settings in it and are posting here to complain about you deleting the profile. AM I reading this correctly?

See https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data

Helpful?

more options

nope. full profile is still present. i had the 1st error msg as noted. per https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding

i deleted the file profile.lock for FF and fixed the situation

searched for TB and found similar replies - https://support.mozilla.org/en-US/questions/1405955

so i deleted profile.lock for TB as well

i have all emails backed up. there are just inconsistencies in older emails (no subject, sender, etc) following import and I can no longer receive emails. I'm still working on the latter

I am considering moving emails to external drive, fully deleting profile, and doing a clean install, new profile and re-import old emails

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.