I figured out what's wrong. install.rdf is listing a minVersion > maxVersion for sunbird and lightning in its install.rdf. Attached is a patch that'll fix this if you patch /usr/share/xul-ext/gdata- provider/install.rdf with it.
** Patch added: "install.rdf.patch" https://bugs.launchpad.net/ubuntu/+source/lightning-extension/+bug/897156/+attachment/2611974/+files/install.rdf.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/897156 Title: xul-ext-gdata-provider: Provider for Google Calendar is incompatibilite with Thunderbird 8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightning-extension/+bug/897156/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs