Coding an advance chrome extension

Hi Guys! To hold it short: I have some VPS with windows 10 server edition on it. Im running chrome browsers there. Now i need to automate some tasks on specific pages on all servers. For automating that i want an chrome extension. Main tasks of the extension are opening 1-2 tabs with specific urls, and doing an sequence of clicks, typing, waiting for an button appear and like that. Nothimg very compley but its not an one click things, its more an sequence like automate sign-up on an page for example. Important here is that the extension is flexible. So when the target url or the buttonds tags or ID's are changing or the sequence of what to do on that page we need update the code locally push it on an server and the extension need update his self each morning for exmple, Otherwise i would need to update each extension manually what i dont want to do. Im self an web developer so you dont need mind wich url, wich button tags or ids you need fill in that all i can handle, i need just an perfectly bug free working extension to perform tasks like opening tabs, clicking on specific buttons, wait 2-3 secounds may, and typing something in an field.