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How do I use the DOM of a page that is open in the browser by the code in my extension?
Ex: In the popup of my extension has a button, which I hope when clicking, the value of a div on the open site changes.
Can you do this? I can only access the DOM of the popup extension, but I can’t access the DOM of the open page
Not quite what I want, apparently this way will create the button in the extension popup and the alert will not be displayed
– Márcio Sebastião