Hi,

Thanks for reporting the issue.

Backup and restore buttons sync your containers data using Firefox sync.

View synced containers opens a sidebar (left or right) showing a list of synced containers.

Can you please create an issue on github here(https://github.com/ramkumar-kr/containers-sync/issues/new) with the following information so that we can solve this?

- Version of Firefox
- Operating system
- Whether Firefox sync is enabled
- Screenshot/recording showing the bug.

Thanks again,