The folder upload will work in browsers that support Chrome 7+.

To upload folders in Zoho Docs:

1. Click on 'Upload" button from the top left side panel and select "Folder Upload" option from drop down menu
2. A pop-up will appear with all your desktop folders.
3. Select a folder and click Ok .
4. A Upload pop-up will appear. Click on Start Upload
5. You will see the folder listed under My Folders.

Note: If the folder has sub-folders, then the folders will be created with the same hierarchical folder structure.