If you or your User only see the option to Browse for Files in the file chooser, you may need to adjust some Site Role abilities. Users need two Site Role abilities enabled in order to upload Files via the file chooser:
- Workflow: Bypass workflow
- Upload: Upload images in file chooser
You can check out a User's effective abilities for a Site by following these steps.
If you don't wish a User to be able to bypass workflow, they'll need to upload Files beforehand using an Asset Factory and browse for them in the file chooser.