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Last active June 28, 2024 01:10
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Fix Thunderbird Gmail login error (Thunderbird version 115.12.2 (64-bit))

Fixing Gmail account creation error on Thunderbird 115.12.2

I spent hours scouring the net and finally found how to get Thunderbird version 115.12.2 on Ubuntu 24.04 to connect to my Gmail account.

The reference is from:

https://superuser.com/questions/1499159/thunderbird-fails-gmail-oauth2-despite-correct-credentials/1839995#1839995

by: https://superuser.com/users/1109344/feldmarshall

Essentially you have to use the Thunderbird Config Editor to change the "general.useragent.compatMode.firefox" property to true.

The config editor can be found under Edit-Preferences-Advanced-General-Config Editor

Keywords: Ubuntu Thunderbird Gmail login error 24.04

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