Build me browser

I need you to develop some software for me. I need browser same firefox But when i install this software i want the apps to ask me which link i need to use on the software After installation software will ask me if trial or license if trial software will have 30 days only if license i need to enter key then will be permanent I need the apps with print preview optional Note the web application im using is point of sales system i need this app then the employee is not to open other pages