Hi,
For browser based forms you can enable or disable any buttons in the edit ribbon by opening your form > navigating to advanced form options > choose the Web Browser Category > then check or uncheck any of the options that you want or don't want which in your case is unchecking the save button. Hope that helps.
Regards,
Mohammad Alshorbaji
Qdabra® Software / InfoPathDev.com / 877.544.2389
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