This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

Connection a gmail account

  • 4 àwọn èsì
  • 1 ní ìṣòro yìí
  • 7 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ him512

more options

I am trying to connect a gmail account to Thunderbird..... but i keep getting this error message ...400. That’s an error.

The server cannot process the request because it is malformed. It should not be retried. That’s all we know. I believe all setting are correct and my password for the gmail account is the same as my google account spent many hours on this lol

I am trying to connect a gmail account to Thunderbird..... but i keep getting this error message ...400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know. I believe all setting are correct and my password for the gmail account is the same as my google account spent many hours on this lol

All Replies (4)

more options

Please share your server settings. I have also found that I have better success with gmail setups by omitting the password during the setup process.

more options

Just tried by omitting the password... same error message.

server settings.... Incoming..... port 993.. SSL/TLS... OAuth2

Outgoing....... Port 465.... SSL/TLS....OAuth2

I have the same password for both google and gmail now ....

more options

I tried without the password but got the same error message.... have cleared cache .... re logged in etc.... still no luck. I would have thought that it would be such an easy thing to do to add another account.... the set up is so straight forward

more options

I fixed this with a clue from https://support.mozilla.org/en-US/kb/thunderbird-and-gmail I did the things below, retried the Add Mail Account, and voila!

Enable cookies in Thunderbird: Click the menu button and click Settings, which opens in a new tab. Select Privacy & Security. Under Web Content section, select checkbox Accept cookies from sites.

You may need to set an exception: Click Exceptions… button. Add an exception for https://accounts.google.com Click Allow. Click Save Changes.