Hi reset. Sorry for the troubles. Yes, we detected a problem with 79.0b3 related to Mac addressbook and immediately stopped updates to 79.0b3. This will be fixed in 80.0b1.

You will want to download http://archive.mozilla.org/pub/thunderbird/releases/79.0b2/mac/en-US/ - it will not update to 79.0b3. It will update to 80 when that becomes available.

Thank you for using beta.

Thank you Wayne!

Hi Wayne, just to inform you, the new beta 81 beta 1 is not working, it would not start. Needed to get back to 80 beta 5. Greetings

> the new beta 81 beta 1 is not working, it would not start

We have not seen this in testing. What do you see when you start?

> the new beta 81 beta 1 is not working, it would not start We have not seen this in testing. What do you see when you start?

Nothing, It just won't start unfortunately.

Do windows-key + R Then thunderbird.exe -safe-mode -jsconsole -P At the Thunderbird profile selector prompt the last profile used should already be selected. Pick "start". At the safe mode prompt pick the continue in safe mode button.

What do you see on the screen, particularly the Error Console window?

I am in a 2008 Macbook Pro under OSX 10.11.6 (El Capitan)...

Since you use the old OS X 10.11 https://blog.mozilla.org/futurereleases/2020/06/23/update-on-firefox-support-for-macos-10-9-10-10-and-10-11/

Since you use the old OS X 10.11 https://blog.mozilla.org/futurereleases/2020/06/23/update-on-firefox-support-for-macos-10-9-10-10-and-10-11/

I am talking about the latest Thunderbird beta release, the beta 81 beta 1 is not working, it just would not start. Beta release 80 beta 5 is still working for me. Thanks

I am aware this was about Thunderbird. Just informing you about Firefox and that the Thunderbird community could make this change with Thunderbird at some point.

I am aware this was about Thunderbird. Just informing you about Firefox and that the Thunderbird community could make this change with Thunderbird at some point.

Hi, just to report, beta 81 beta 2 is not working for me either. I just re installed the Beta release 80 beta 5, which is the last beta to work on my 2008 MBP.

Since I have to stick to the betas, for I cannot go back to the current official release, could you please tell me, how do I get that ESF version you mentioned? Thank you