Rated 5 out of 5 stars
As of the latest version the bug is now fixed. Thanks Michael
This app works great for us but seems to have a few issues when we try to use certain addons & features in Thunderbird. When using the Lightning addon, ThunderStats addon, or global search (built into Thunderbird) an error pops up saying "TypeError: content is null". Disabling the Telify addon fixes the issue. The popup doesn't seem to affect anything other than being quite annoying after a while.