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web_extensions / latest / api / downloads / show.html

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