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Thunderbird Gmail OAuth2 failing with Thunderbird detected a potential security threat and did not continue to accounts.google.com

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  • Last reply by matt193

matt193
matt193
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TB version: 115.1.0 (64-bit) Windows 10 (corporate laptop)

Fresh laptop, fresh install of TB.

When trying to connect [email protected] (not really my email), TB correctly detects that my domain is hosted at Google, configures IMAP and SMTP for OAuth2, and pops up the window to authenticate.

Instead of an authentication prompt, I'm met with this error:

URL: https://accounts.google.com/o/oauth2/auth?response_type=code&client_id=<CHOMP>aq8lmia8j<CHOMP>.apps.googleusercontent.com&redirect_uri=http%3A%2F%2Flocalhost&scope=https%3A%2F%2Fmail.google.com%2F+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcarddav+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcalendar&login_hint=user%40example.com

Text: Did Not Connect: Potential Security Issue

Thunderbird detected a potential security threat and did not continue to accounts.google.com because this website requires a secure connection.

TB version: 115.1.0 (64-bit) Windows 10 (corporate laptop) Fresh laptop, fresh install of TB. When trying to connect [email protected] (not really my email), TB correctly detects that my domain is hosted at Google, configures IMAP and SMTP for OAuth2, and pops up the window to authenticate. Instead of an authentication prompt, I'm met with this error: URL: https://accounts.google.com/o/oauth2/auth?response_type=code&client_id=<CHOMP>aq8lmia8j<CHOMP>.apps.googleusercontent.com&redirect_uri=http%3A%2F%2Flocalhost&scope=https%3A%2F%2Fmail.google.com%2F+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcarddav+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fcalendar&login_hint=user%40example.com Text: Did Not Connect: Potential Security Issue Thunderbird detected a potential security threat and did not continue to accounts.google.com because this website requires a secure connection.

Chosen solution

This problem was solved after determining that my corporation has alternative root certs enabled on this device. The solution is:

  1. Go to "Settings"
  2. Search for "Config Editor"
  3. Click the "Config Editor" button
  4. Search for "security.enterprise_roots.enabled"
  5. Click the toggle/set the value to "true"
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matt193
matt193 Question owner
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Screenshot of the error attached.

matt193
matt193 Question owner
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Chosen Solution

This problem was solved after determining that my corporation has alternative root certs enabled on this device. The solution is:

  1. Go to "Settings"
  2. Search for "Config Editor"
  3. Click the "Config Editor" button
  4. Search for "security.enterprise_roots.enabled"
  5. Click the toggle/set the value to "true"