1. There is a significant delay between opening the popup and when the contents display.
2. After a sync, the new contents don't appear until after reopening the popup.

I have seen issue #1 with other extensions so maybe there's not much that can be done for now. However, I would like to see issue #2 fixed since reopening the popup is not ideal considering issue #1.

Otherwise I'm happy to see that Todoist is a Web Extension :)