*** This bug is a duplicate of bug 1849542 *** https://bugs.launchpad.net/bugs/1849542
I do not think this is a duplicate. My global-messages-db.sqlite is fine, as all I did on Ubuntu 16.04 was downgrade thunderbird version. Download from https://launchpad.net/ubuntu/+source/thunderbird/1:60.9.1+build1-0ubuntu0.16.04.1/+build/18178755 and then sudo dpkg -i thunderbird_60.9.1+build1-0ubuntu0.16.04.1_amd64.deb thunderbird-gnome-support_60.9.1+build1-0ubuntu0.16.04.1_amd64.deb thunderbird-locale-de_60.9.1+build1-0ubuntu0.16.04.1_amd64.deb thunderbird-locale-en_60.9.1+build1-0ubuntu0.16.04.1_amd64.deb thunderbird-locale-en-us_60.9.1+build1-0ubuntu0.16.04.1_all.deb xul-ext- lightning_60.9.1+build1-0ubuntu0.16.04.1_amd64.deb so the reason is something else. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/1859043 Title: thunderbird completely broken after upgrade Status in thunderbird package in Ubuntu: Confirmed Bug description: When trying to start thunderbird 1.68 with my 1.60 profile, the following error appears: JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined TypeError: aAttrDef.objectNounDef is undefined -- Exception object -- * -- Stack Trace -- defineAttribute@resource:///modules/gloda/gloda.js:1922:5 defineAttributes@resource:///modules/gloda/fundattr.js:71:35 init@resource:///modules/gloda/fundattr.js:43:12 @resource:///modules/gloda/everybody.js:13:15 @resource:///modules/gloda/public.js:8:57 nsAutoCompleteGloda@jar:file:///usr/lib/thunderbird/omni.ja!/components/glautocomp.js:516:32 createInstance@resource://gre/modules/XPCOMUtils.jsm:433:19 glodaSearch_XBL_Constructor@chrome://messenger/content/search.xml:73:16 JavaScript error: chrome://messenger/content/msgMail3PaneWindow.js, line 470: TypeError: TagUtils is undefined JavaScript error: resource:///modules/gloda/gloda.js, line 1922: TypeError: aAttrDef.objectNounDef is undefined JavaScript error: chrome://messenger/content/mailWindowOverlay.js, line 172: TypeError: gFolderDisplay is null JavaScript error: chrome://messenger/content/mailWindowOverlay.js, line 172: TypeError: gFolderDisplay is null JavaScript error: chrome://messenger/content/mailWindowOverlay.js, line 172: TypeError: gFolderDisplay is null JavaScript error: chrome://messenger/content/msgMail3PaneWindow.js, line 780: TypeError: accountManager is undefined The result is a completely unusable thunderbird: the main window opens, but there are no messages and it is not possible to open any secondary window. Downgrading to 1.60 (from disco) solves this issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1859043/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp