Automation of the same type of actions in the browser

Programmer services are required. You need to automate the same type of actions in the browser. In general terms: Interested robot that could perform a certain algorithm of clicking buttons on sites, restart the browser, open tabs, take information from text files on the computer, insert them where necessary, press buttons with a time delay, give sound signals to inform the administrator, etc.
I am interested in the approximate price order. I will then describe the detailed TZ.