Join us to show up for other Firefox users 🦊. Earn fun badges and Mozilla swag vouchers! Find out more: https://mzl.la/askafox150

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Támogatás keresése

Kerülje el a támogatási csalásokat. Sosem kérjük arra, hogy hívjon fel egy telefonszámot vagy osszon meg személyes információkat. Jelentse a gyanús tevékenységeket a „Visszaélés bejelentése” lehetőséggel.

További tudnivalók

A témacsoportot lezárták és archiválták. Tegyen fel új kérdést, ha segítségre van szüksége.

Unable to Authenticate Gmail Accounts - Thunderbird 91.8.0

  • 3 válasz
  • 3 embernek van ilyen problémája
  • 109 megtekintés
  • Utolsó üzenet ettől: krlever
  • Megoldva

I'm unable to add any of my Gmail accounts into Thunderbird.

When I add a Gmail account, it goes through the process of logging in via OAuth2 using the default configuration, and I get the pop-up. I enter my email address and password, and it brings me to the Google screen where I approve of giving access to Thunderbird (this screen: https://www.google.ca/search?q=google+account+permissions+screen+thudnerbird&tbm=isch&ved=2ahUKEwjtpY2M7I_3AhXHg3IEHaaPCOkQ2-cCegQIABAA&oq=google+account+permissions+screen+thudnerbird&gs_lcp=CgNpbWcQA1CVA1jjDmDED2gAcAB4AYABgwGIAbcJkgEDNi42mAEAoAEBqgELZ3dzLXdpei1pbWfAAQE&sclient=img&ei=jiFWYu2mCceHytMPpp-iyA4&bih=754&biw=1600#imgrc=ZNXSyYRJ67bY4M).

When I hit Allow, the pop-up closes, and then Thunderbird comes back with "Unable to log in at server. Probably wrong configuration, username or password."

I have no problem adding Gmail to other apps; it's only Thunderbird that is having this issue. I've already tried a fresh install on a fresh profile, but it continues to fail.

I'm unable to add any of my Gmail accounts into Thunderbird. When I add a Gmail account, it goes through the process of logging in via OAuth2 using the default configuration, and I get the pop-up. I enter my email address and password, and it brings me to the Google screen where I approve of giving access to Thunderbird (this screen: https://www.google.ca/search?q=google+account+permissions+screen+thudnerbird&tbm=isch&ved=2ahUKEwjtpY2M7I_3AhXHg3IEHaaPCOkQ2-cCegQIABAA&oq=google+account+permissions+screen+thudnerbird&gs_lcp=CgNpbWcQA1CVA1jjDmDED2gAcAB4AYABgwGIAbcJkgEDNi42mAEAoAEBqgELZ3dzLXdpei1pbWfAAQE&sclient=img&ei=jiFWYu2mCceHytMPpp-iyA4&bih=754&biw=1600#imgrc=ZNXSyYRJ67bY4M). When I hit Allow, the pop-up closes, and then Thunderbird comes back with "Unable to log in at server. Probably wrong configuration, username or password." I have no problem adding Gmail to other apps; it's only Thunderbird that is having this issue. I've already tried a fresh install on a fresh profile, but it continues to fail.

Kiválasztott megoldás

Problem has been solved - saw a tip elsewhere to try in Safe Mode, which worked. Issue is not with Thunderbird but with something else running that is blocking the OAuth2 authentication.

Válasz olvasása eredeti szövegkörnyezetben 👍 0

Összes válasz (3)

I forgot to add - I've already made sure cookies are enabled, so it is not a cookie issue.

Kiválasztott megoldás

Problem has been solved - saw a tip elsewhere to try in Safe Mode, which worked. Issue is not with Thunderbird but with something else running that is blocking the OAuth2 authentication.

As of June 2022, Google has now disabled access to "less secure apps." This problem USED to be solved by selecting "Allow Less Secure Apps" in Gmail, but this option has now been removed. POP access to Gmail is not currently possible in Thunderbird.