What if I'm not seeing the shared folder options window?
If the shared folder options window fails to pop up in your browser, you may be experiencing an issue caused by a third-party browser extension or an add-on (such as a pop-up or ad blocker).
If this happens, temporarily disable any browser extensions or add-ons that are running. Once you remove your access to a shared folder or update other settings, you can re-enable these browser extensions.
If you'd like to continue using the extension, you may be able to create an exception for Dropbox, or whitelist https://www.dropbox.com.
However, not all extensions support this functionality.