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In wanting to add a new tool to Thunderbird, lack of a pasword makes the program now unable to be opened.

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Upon opening Thunderbird on a Mac (OS 26.5) the program posted a window requesting a password in order to add a new tool to the application. Unfortunately we have lost the password and the program insists it needs the password to continue. An option is offered to 'Ignore', but pressing this button does not launch Thunderbird, rather it sets up some Mozilla 'thingy' operating in the background (the Thunderbird icon in the dock is active) which can be terminated by Force Quitting the process. The thing is, Thunderbird is now unavailable at this point due to the new tool that could not be added to the application.

Upon opening Thunderbird on a Mac (OS 26.5) the program posted a window requesting a password in order to add a new tool to the application. Unfortunately we have lost the password and the program insists it needs the password to continue. An option is offered to 'Ignore', but pressing this button does not launch Thunderbird, rather it sets up some Mozilla 'thingy' operating in the background (the Thunderbird icon in the dock is active) which can be terminated by Force Quitting the process. The thing is, Thunderbird is now unavailable at this point due to the new tool that could not be added to the application.

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Could this possibly be a MAC password request, and not a Thunderbird one?

It doesn't seem to be a system request because entering the system password does nothing for starting up Tbird. I am fuzzy about Tbird's password requirements as I immediately forgot whatever password I entered when I installed it on my wife's computer 7 months ago.

Have you availed yourself of the user documentation about passwords and how to remove them? See https://support.mozilla.org/en-US/kb/protect-your-thunderbird-passwords-primary-password

Is the message you're seeing "Thunderbird is trying to install a new helper tool. Type your password to allow this."? If so, the following links might be helpful:

1. Repeating Helper Tool Installation Message https://support.mozilla.org/en-US/questions/1287465

2. Troubleshoot Firefox updates and the Helper tool https://support.mozilla.org/en-US/kb/firefox-helper-tool-macos

3. "Firefox is trying to install a new helper tool. Enter an administrator's name and password to allow this." gets in a loop in a standard (non-administrator) macOS account. https://www.reddit.com/r/firefox/comments/1p6l9c1/firefox_is_trying_to_install_a_new_helper_tool/

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