I am not able to see the download to browser option and can only see download to ftp option. another user of same environment is able to see this option.
Sounds like the issue is either related to your browser or your user permissions.
I would try using Incognito mode if you're using Chrome or clearing cache and cookies and then see if the browser download option is available.
Check this link for more troubleshooting steps - Troubleshoot issues in Google Chrome
If that doesn't work then I'd compare your permissions to the user who is able to see the browser download option to see if you're missing something.