Reinstalling Thunderbird worked here https://support.mozilla.org/en-US/questions/1367928

P.S.: I found many proposed solutions suggesting to delete certain files but some of them do not appear on my system:

• cert9.db is there (and gets recreated)
• key4.db is there (and gets recreated)
• pkcs11.txt is NOT there
• session.json is NOT there [CORRECTION: I did find this file now and it is also recreated by Thunderbird.]

Reinstalling Thunderbird worked here https://support.mozilla.org/en-US/questions/1367928

I tried uninstalling and re-installing Thunderbird. The re-install created a new, empty profile. Within this empty profile, I tried to set a primary password and it worked, so I assume saving passwords would also work in this new profile.

However, I really want to keep using my existing profile. I started with the Profile Manager and selected the old profile with all my settings. Now Thunderbird again failed to set a primary password and failed to remember my passwords.

Apparently there is some incompatibility between the new Thunderbird version and my existing profile from the old version. Is there any way I can transfer my profile to the new version, avoiding this problem?

Woohoo, I think I solved the problem:

As I already noted above, I could not find the file pkcs11.txt in my old profile. I noticed that the new, empty profile created by the re-install did have this file. So I made an experiment:

1. Copy the file pkcs11.txt from the new profile to the old one.
2. Edit the copy: Under "parameters=configdir", there is a path to the (new) profile directory stored in this file. I changed the path to point to my old profile directory (using 8.3-format directory names as was stored by Thunderbird in the new profile. I don't know whether this is necessary. Note: You can display the 8.3-names using DIR /X on the command line.)

Now everything seems to work! Thunderbird remembers the passwords, they show up under "Saved Passwords" and I could even set the primary password, which did not work before!

P.S.: To switch between profiles, you must run Thunderbird with the "-p" switch to get into the Profile Manager. On Windows, use Win+R and type "thunderbird.exe -p" to start the Profile Manager.

I was going to suggest you copy everything from your old profile folder to the new one, except for the cert*.db, key*.db, pkcs11.txt and sessions.json files.

You can switch profiles using the inbuilt Profile Manager UI too. See Profile Manager - Create and remove Thunderbird profiles

You can switch profiles using the inbuilt Profile Manager UI too. See Profile Manager - Create and remove Thunderbird profiles

Thanks, good to know.

Cookies are enabled. Signing in with Google has no effect. I complete the form, but no sign in occurs. Same with my Comcast email account, I enter the user name and password, but no sign in occurs.

Hello,

I also recently upgraded from V2.x to recent 102.3.3 and it is not possible to save passwords or set a Primary password. I'm on Win7.

Nothing suggested on this or other posts works, so this must be a bug in the program.