I'm currently working on a chrome extension where I let the user select tabs and open them in a new window. I can do so by making use of chrome.windows.create(). I know you can manually rename the window in chrome but I couldn't find anything in the documentation that allows you to rename it in js? So is it possible to rename windows in js?
Do you mean is it possible to change site title? If that's what u want u - can use document.title = "new site name".