This extension has recently been updated, and the login issue has been fixed. It now works really great, and I will strongly recommend it.

Only 'save multiple images' (by pressing ALT) works for me. Debug shows a warning related to the manifest. Maybe that's the cause for the other features not to work properly ...
Update: Issues fixed in 1.5.2 - thx!

excellent must have service and extension only thing missing is to be able to set cloud save dir instead of only one choice

Nice extension