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.

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

Denc nañu waxtaan wii. Yónneel yeneen laaj soo soxlaa ndimbal.

Cannot set Thunderbird default browser to Firefox

Alexandre Paulo
Alexandre Paulo
more options

Kubuntu 22.04 Thunderbird 102.7.1 (64-bit)

I simply cannot change the default browser from Chrome to Firefox.

  • Firefox is my default browser.
  • I've set network.protocol-handler.warn-external.http and network.protocol-handler.warn-external.https to true.
  • I've edited the attachment entries for https and http to "always ask"
  • I've delete the attachment entries for https and http

No success. Thunberbird always reverts the setting to Chrome.

This should not be so complicated :( Why not a simple setting "Default browers" and pick one from there?

Kubuntu 22.04 Thunderbird 102.7.1 (64-bit) I simply cannot change the default browser from Chrome to Firefox. * Firefox is my default browser. * I've set network.protocol-handler.warn-external.http and network.protocol-handler.warn-external.https to true. * I've edited the attachment entries for https and http to "always ask" * I've delete the attachment entries for https and http No success. Thunberbird always reverts the setting to Chrome. This should not be so complicated :( Why not a simple setting "Default browers" and pick one from there?

Saafara biñ tànn

First, I am a novice at Linux, but typically, the default browser is set in the OS, not the email client. At least that's how it works in Windows. Thunderbird just invokes to default browser, but does not set it. This article may (or may not) be useful: https://linuxconfig.org/how-to-set-browser-environment-variable-on-linux

Jàng tontu lii ci fi mu bokk 👍 1

All Replies (2)

david
david
  • Top 10 Contributor
more options

Saafara yiñ Tànn

First, I am a novice at Linux, but typically, the default browser is set in the OS, not the email client. At least that's how it works in Windows. Thunderbird just invokes to default browser, but does not set it. This article may (or may not) be useful: https://linuxconfig.org/how-to-set-browser-environment-variable-on-linux

Alexandre Paulo
Alexandre Paulo Ki laajte
more options

Thanks a lot.

That solved my problem, finally. I was being fooled by Firefox itself - apparently the "Firefox is your default browser" setting and confirmation (view image) is irrelevant.