FoxFan100 wrote:I have searched prefs.js for the Local Folders folder, called "LocalFolder Mail", and it occurs only twice, in these consecutive lines:-
user_pref("mail.server.server2.directory", "C:\\Users\\Fred\\AppData\\Roaming\\Thunderbird\\Profiles\\abcdefgh.default\\LocalFolder Mail");
user_pref("mail.server.server2.directory-rel", "[ProfD]LocalFolder Mail");
A folder "LocalFolder Mail" in the profile folder is considered by TB 24 as a folder not safe to store mail to!
Read comment #32 in the bug report https://bugzilla.mozilla.org/show_bug.cgi?id=921371#c32
which says
"Depends on where your Local directories are set. If they are outside of the profile (e.g. d:\data\TB-mail\*), then mail.root.* directories are not consulted. They are only used if the Local directory points into the profile. Then the prefs say which folders are safe to store mail to. Currently it should be Mail, ImapMail, News unless the user changed them."
I just created a folder "LocalFolder Mail" in my profile folder, then tried to change the path to the local directory for message storage by pointing to the "LocalFolder Mail" folder and got the error message!
But this still doesn't explain why you get the error message in 4), 5) and 6).
Furthermore, you didn't find any mail.root path pointing to "LocalFolder Mail" in your prefs.js file.
6) IF the Account Settings window opens with "Local Folders" highlighted,
My account settings window always opens with the default account highlighted.
If you can open it with Local Folders highlighted, this must be the effect of an add-on.
Maybe in your case one or more add-ons are interfering with the problem caused by the new message storage directory control feature in TB 24 which makes it even more difficult to find a solution.
Why don't you use \Profiles\abcdefgh.default\Mail\Local Folders instead of Profiles\\abcdefgh.default\\LocalFolder Mail ?