The onErased() event of the downloads API fires when a download is erased from the browser history.
The listener is passed the downloadId of the downloads.DownloadItem object in question as a parameter.
browser.downloads.onErased.addListener(listener) browser.downloads.onErased.removeListener(listener) browser.downloads.onErased.hasListener(listener)
Events have three functions:
addListener(callback)removeListener(listener)listener argument is the listener to remove.hasListener(listener)listener is registered for this event. Returns true if it is listening, false otherwise.callbackA callback function that will be called when this event occurs. This function will be passed the following arguments:
downloadIdinteger representing the id of the downloads.DownloadItem that was erased.| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
onErased |
Yes |
79 |
48 |
? |
Yes |
No |
? |
? |
48-79 |
? |
? |
? |
Add a listener for onErased events, then erase the most recent download:
function handleErased(item) { console.log(`Erased: ${item}`); } browser.downloads.onErased.addListener(handleErased); var erasing = browser.downloads.erase({ limit: 1, orderBy: ["-startTime"] });
Note: This API is based on Chromium's chrome.downloads API.
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https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/downloads/onErased