Atmos for Chrome no longer works in chrome version 67

Atmos for chrome works happily in chrome version 66, however since updating to chrome 67, the extension no longer works or installs

it reports the following error on install of the crx file    

"Package is invalid Details:' Themanifest_version' key must be present and set to 2 (without quotes).

i have attempted to change the manifest file and have managed to get the extension to load, however when clicking the icon it doesnt load so something is still broken.

If there any chance this will be fixed moving forward or is there another browser based client that works to access our ATMOS API based ECS buckets (since atmosfox also no longer works in firefox)

Thanks

Mike