Rated 5 out of 5 stars

There was no way to update to the newer gmailui-1.0-tb.xpi with the AddOn Updater (always gave a download-error) !
The good news is : after downloading the gmailui-1.0-tb.xpi manually / locally and installing (actually updating) from the saved file, it works in TB45

This review is for a previous version of the add-on (0.9.1-let-fixed).