action.getPopup()
Gets the HTML document set as the popup for this browser action.
Note: This API is available in Manifest V3 or higher.
This is an asynchronous function that returns a Promise.
Syntax
js
let gettingPopup = browser.action.getPopup(
  details               // object
)
Parameters
- details
- 
    An object with the following properties: - tabIdOptional
- 
        integer. The tab whose popup to get.
- windowIdOptional
- 
        integer. The windows whose popup to get.
 
- If windowIdandtabIdare both supplied, the function fails.
- If windowIdandtabIdare both omitted, the global popup is returned.
Return value
A Promise that will be fulfilled with a string containing the URL for the popup's document. This will be a fully qualified URL, such as moz-extension://d1d8a2eb-fe60-f646-af30-a866c5b39942/popups/popup2.html.
Examples
Get the popup's URL:
js
function gotPopup(popupURL) {
  console.log(popupURL);
}
let gettingPopup = browser.action.getPopup({});
gettingPopup.then(gotPopup);
Browser compatibility
BCD tables only load in the browser
Note: This API is based on Chromium's chrome.action API. This documentation is derived from browser_action.json in the Chromium code.