What you are looking for is called Page Action .
In which application should we use page actions? If you want to add your extension functions to several separate pages, use page actions. Otherwise, if you want to add features on most pages, use Browser Actions . The text cannot be added to the actions of the page, although it can be added to the actions of the browser with the restriction of the icon (a little text that overlays the icon).
A few good examples of such extensions to help you introduce the concept:
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