Google defines the browser action as static buttons, and the page action as dynamic buttons. Google is very careful with the Chrome interface and does not want people to use buttons in different ways, which they “should” do.
They do this because they believe that users have made an effort to learn how to use Chrome, and Google wants to introduce a consistent, consistent and minimalistic user interface.
You don’t have much freedom with the Chrome user interface.
Alejandro Silvestri
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