The acceptDanger() function of the downloads API prompts the user to either accept or cancel a potentially dangerous download.

This function can't be called from background scripts, only in scripts that are running in a visible window (such as a browser or page action's popup).

This is an asynchronous function that returns a Promise.


var prompting = browser.downloads.acceptDanger(
  downloadId      // integer


An integer representing the id of the DownloadItem in question.

Return value

A Promise. When the dialog closes, the promise will be fulfilled with no arguments.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
acceptDangerChrome Full support YesEdge Full support 79Firefox No support NoOpera Full support YesSafari No support NoFirefox Android No support No


Full support  
Full support
No support  
No support

This API is based on Chromium's chrome.downloads API.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.