downloads.show()

The show() function of the downloads API shows the downloaded file in its containing folder in the underlying platform's file manager.

This is an asynchronous function that returns a Promise.

Syntax

let showing = browser.downloads.show(
  downloadId             // integer
)

Parameters

downloadId: An integer representing the ID of the DownloadItem to show.

Return value

A Promise. If the request succeeds, the promise will be fulfilled with a boolean about whether the request was successful. If the request fails, the promise will be rejected with an error message.

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`show`	Yes	79	48	?	Yes	No	?	?	48–79	?	No	?

Examples

This example shows the most recently downloaded item:

function onShowing(success) {
  console.log(`Showing download item: ${success}`);
}

function onError(error) {
  console.log(`Error opening item: ${error}`);
}

function openDownload(downloadItems) {
    if (downloadItems.length > 0) {
      latestDownloadId = downloadItems[0].id;
      let showing = browser.downloads.show(latestDownloadId);
      showing.then(onShowing, onError);
    }
  }

let searching = browser.downloads.search({
  limit: 1,
  orderBy: ["-startTime"]
});

searching.then(openDownload, onError);

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

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/downloads/show