Manifest file_handlers browser support

The file_handlers manifest member registers an installed PWA with the operating system as a handler for specific file types, so opening a matching file launches the app, which receives the file through window.launchQueue.

The table covers the member as recorded in MDN browser-compat-data.

• Legend
• Yes
• Partial
• Flag
• No
• Unknown

Browser / Platform	Support	Versions	Confidence	Source	Notes
Chrome (Desktop)	Yes	102	high	source	—
Chrome (Android)	No	—	high	source	1
Edge (Desktop)	Yes	102	high	source	2
Firefox (Desktop)	No	—	high	source	3
Firefox (Android)	No	—	high	source	45
Safari (macOS)	No	—	high	source	6
Safari (iOS)	No	—	high	source	78
Samsung Internet	No	—	high	source	910
WebView (Android)	No	—	high	source	1112

1. No Chrome Android support is recorded in browser-compat-data.
2. Derived by browser-compat-data mirroring from Chrome.
3. No Firefox support is recorded in browser-compat-data.
4. No Firefox for Android support is recorded in browser-compat-data.
5. Derived by browser-compat-data mirroring from Firefox.
6. No Safari support is recorded in browser-compat-data.
7. No Safari on iOS support is recorded in browser-compat-data.
8. Derived by browser-compat-data mirroring from Safari.
9. No Samsung Internet support is recorded in browser-compat-data.
10. Derived by browser-compat-data mirroring from Chrome Android.
11. No WebView Android support is recorded in browser-compat-data.
12. Derived by browser-compat-data mirroring from Chrome Android.

Source data: /compatibility/manifest-file-handlers.json · Global usage: 37 % (StatCounter 2026-05)

Source: spec · MDN · Last verified 2026-10-03 · Confidence: high (computed from sources)

Platform limits and detection

Chromium’s implementation is limited to desktop operating systems (Chrome for Developers), so the OS “Open with” flow does not reach the app on Android. Feature detection checks two conditions, "launchQueue" in window and "files" in LaunchParams.prototype, because launchQueue alone does not confirm that launch parameters carry files.

See also

• Manifest file_handlers
• Let installed web applications be file handlers (developer.chrome.com)
• file_handlers (developer.mozilla.org)