What is this thing called...?

What is the thing called that you use to close a browser?

• idk what the thing on the top of the tolbar is called on the top of the browser that you use to close it, make it smaller or bigger and to hide it. can some tell me what it is called. i want to know what it is called because i want to see if i can change it. because i got safari for my pc and the thing to close it is the pc one and i want to change it to the mac looking one that has the little red, green, and yellow dots. do someone know what it is called?

• Answer:

  The area above the toolbars (such as the Menu bar) is called the Title bar, as that is where the program's name and website <title> are shown. Buttons on the title bar that manipulate the window are called just "title bar buttons" or "window control buttons". Changing the style of these buttons is usually done by the program's skins/themes.