Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

Uninstalled thunderbird 78, installed version 68, installing an extension complains about version 78

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by Chelmite

more options

I upgraded to Ubuntion 20.10, which uninstalled my old version of thunderbird, and installed version 78.4.0. 78.4.0 won't run the critical extensions that I need, so I uninstalled it and installed thunderbird 68.12.1. Now, when I try to install the Nostalgy extension, I get the message:

Nostalgy is incompatible with Thunderbird 78.4.0

What??? Why is it referencing 78.4.0? I uninstalled it!

I downloaded https://archive.mozilla.org/pub/thunderbird/releases/68.12.1/linux-x86_64/en-US/thunderbird-68.12.1.tar.bz2 I then untarred it into /opt/thunderbird/thunderbird-68.12.1/, and made the symbolic link: % ln -s /opt/thunderbird/thunderbird-68.12.1 /usr/bin/thunderbird % thunderbird --version Thunderbird 78.4.0 WTF?

I upgraded to Ubuntion 20.10, which uninstalled my old version of thunderbird, and installed version 78.4.0. 78.4.0 won't run the critical extensions that I need, so I uninstalled it and installed thunderbird 68.12.1. Now, when I try to install the Nostalgy extension, I get the message: Nostalgy is incompatible with Thunderbird 78.4.0 What??? Why is it referencing 78.4.0? I uninstalled it! I downloaded https://archive.mozilla.org/pub/thunderbird/releases/68.12.1/linux-x86_64/en-US/thunderbird-68.12.1.tar.bz2 I then untarred it into /opt/thunderbird/thunderbird-68.12.1/, and made the symbolic link: % ln -s /opt/thunderbird/thunderbird-68.12.1 /usr/bin/thunderbird % thunderbird --version Thunderbird 78.4.0 WTF?

All Replies (1)

more options

I guessed that version 68.12.1 was the test of the version that was about to become 78.x. I then downloaded 68.12.0. It reports the correct version. After verifying that all my "critical" add-ons would work in 68.12.0, I created a new profile and copied everything from my old profile, and I'm up and productive again. (After experimenting with various recovery strategies for half a day!)

I'll keep tabs on the progress of the developers of my critical add-ons to see when it's safe to upgrade to 78.x.