There is a new version of the Microsoft Azure Storage Explorer, which is now available for Windows, Mac and Linux.
It is a standalone tool to easily work with your Azure Storage Accounts. This release enables you to easily work with Blob Storage: create and delete containers; upload, download, and delete blobs, and search across all your containers and your blobs. For developers and ops, there are more advanced issues to work with SAS keys and Policies. With the free Storage Explorer, you’re in full control of your assets.
Compared with the old version on CodePlex, the new version include the ability to attach storage accounts with custom endpoints, attach blob containers with a SAS key, and view and edit blob metadata.