Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Unable to load address book file abook.mab. It may be read-only, or locked by another application. Please try again later.

  • 1 reply
  • 1 has this problem
  • 3 views
  • Last reply by christ1

michrob
michrob
more options

everytime i load up my thunderbird address book, it says the following statement : Unable to load address book file abook.mab. It may be read-only, or locked by another application. Please try again later.

I appear to have lost all of my contacts (which is not an issue) and the address book doesnt appear to work properly anymore (like collecting new email addresses).

everytime i load up my thunderbird address book, it says the following statement : Unable to load address book file abook.mab. It may be read-only, or locked by another application. Please try again later. I appear to have lost all of my contacts (which is not an issue) and the address book doesnt appear to work properly anymore (like collecting new email addresses).

All Replies (1)

christ1
christ1
  • Top 10 Contributor
more options
I appear to have lost all of my contacts (which is not an issue)

In that case close Thunderbird, and then delete the file abook.mab in your profile folder. If there are any additional address book files like abook-1.mab delete them as well. Restart Thunderbird.

Did the problem go away?

How to find your profile: https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data#w_how-to-find-your-profile