Thunderbird gmail oauth2 not working, May 21, 2022 · Restart Thunderbird after the expected OAuth2 login pages (email address, then password, then "Mozilla Thunderbird Email want to access your Google Account), I get an unexpected " Secure connection failed " page. Reconfigure the Gmail Account in Thunderbird Drawbacks of the Manual Methods Professional Tool to Fix Features of The Pro Tool Jul 18, 2025 · Read it to fix the Thunderbird Gmail authentication failure. Check for Outdated Passwords 5. Secure connection failed This could be a problem with the server's configuration, or it could be someone trying to impersonate the A required part of this site couldn’t load. It does not redirect to the next step. . As always, you’re encouraged to tell us what you think, ask for help, or file a bug in Bugzilla. Jan 19, 2025 · Username is obviously correct, Thunderbird found the account and its settings (IMAP, SSL/TLS, OAuth2, etc. Check Gmail Security Settings 2. This may be due to a browser extension, network issues, or browser settings. Next, select File > New > Existing Mail Account The Mail Account Setup dialog is displayed. Choose the OAuth2 Method 3. Explore the pro tool to overcome Thunderbird not working with Gmail. After you provide your account information (real name, email address, password), Thunderb Aug 21, 2025 · Why Thunderbird Not Working With Gmail? Manual Ways to Fix 1. Please check your connection, disable any Sep 20, 2022 · Thunderbird 91. 4 days ago · Thunderbird Desktop Version 148. 0, released 5th April 2022, converts Gmail accounts to OAuth 2. Jan 2, 2026 · Thunderbird not working with Gmail? Learn why Gmail blocks Thunderbird and follow step-by-step troubleshooting to fix it fast, including secure backup tips. When adding an authenticating a new gmail account on Thunderbird with OAuth2 and trying to download mail for the first time, the Google login screen correctly appears, however when adding the email address and clicking submit, nothing happens, it remains on the same screen and the email address box simply clears itself. 0 | Released February 24, 2026 Check out the notes below for this version of Thunderbird. See Gmail's instructionsfor help. To configure Thunderbird to work with Gmail, first ensure IMAP is enabled on your Gmail account (the default for new Gmail accounts). Use Gmail App Password 4. Give the New Device Access to Gmail 6. 8. 0 in compliance with Google's schedule for requiring this login method. ) Why is Google not prompting me to grant Thunderbird access to my Gmail account? Feb 11, 2025 · Adding a gmail account to Thunderbird on Mac with OAuth2 not working 3 replies 1 has this problem 89 views Last reply by BSmitty 1 year ago Feb 20, 2026 · Quick Gmail Email Settings Summary Gmail email settings are the IMAP, POP, and SMTP server details you need to connect your Gmail or Google Workspace account to clients like Outlook, Apple Mail, Thunderbird, WordPress, and mobile apps.


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