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.

Avatar for Username

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

I can't click the green lock icon in the URL bar of the web browser that launches within Thunderbird.

  • 3 àwọn èsì
  • 1 ní ìṣòro yìí
  • Èsì tí ó kẹ́hìn lọ́wọ́ Ed
  • Open

shirokuma
shirokuma

When adding a new email account, the built-in web browser launches and displays the OAuth screen. To verify the security of the destination site, I want to click the green lock icon in the URL bar to check the details, but I can’t click it.

Does a green lock icon mean a secure connection has been established?

When adding a new email account, the built-in web browser launches and displays the OAuth screen. To verify the security of the destination site, I want to click the green lock icon in the URL bar to check the details, but I can’t click it. Does a green lock icon mean a secure connection has been established?

All Replies (3)

Ed
Ed
  • Top 25 Contributor
  • Moderator

Yes, but I've never heard of the internal browser opening for that. Can you open email links in your default browser?

shirokuma
shirokuma Ìbéèrè olóhun

Dear Ed-san, Yes, clicking the link in the email message will launch Firefox and open the website.

When you add a new Gmail account, Thunderbird’s built-in web browser will launch.

Ed
Ed
  • Top 25 Contributor
  • Moderator

shirokuma said
When you add a new Gmail account, Thunderbird’s built-in web browser will launch.

You're right - it appears to be a stripped down version of the built-in browser.

Béèrè ìbéèrè

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.