The resume() function of the downloads API resumes a paused download. If the request was successful, the download will be unpaused and progress will resume. The resume() call will fail if the download is not active: for example, because it has finished downloading.

This is an asynchronous function that returns a Promise.


var resuming = browser.downloads.resume(
  downloadId      // integer


An integer representing the id of the download to resume.

Return value

A Promise. If the request was successful, the promise will be fulfilled with no arguments. If the request failed, the promise will be rejected with an error message.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxOperaSafariFirefox for Android
resumeChrome Full support YesEdge Full support 79Firefox Full support 48Opera Full support YesSafari No support NoFirefox Android No support 48 — 79


Full support  
Full support
No support  
No support


var downloadId = 2;

function onResumed() {
  console.log(`Resumed download`);

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

var resuming = browser.downloads.resume(downloadId);
resuming.then(onResumed, onError);

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.