Manifest id browser support

The id manifest member gives a PWA a stable identifier. Before id, browsers identified an installed app by its start_url, so changing start_url could make the browser treat the app as a new installation. When id is omitted, the browser uses the processed start_url (fragment removed, query string kept); an explicit id must be same-origin with start_url.

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	96	high	source	—
Chrome (Android)	Yes	96	high	source	1
Edge (Desktop)	Yes	96	high	source	2
Firefox (Desktop)	No	—	high	source	3
Firefox (Android)	No	—	high	source	4
Safari (macOS)	Yes	17	high	source	—
Safari (iOS)	Yes	16.4	high	source	—
Samsung Internet	Yes	17.0	high	source	5
WebView (Android)	Yes	96	high	source	6

1. Derived by browser-compat-data mirroring from Chrome.
2. Derived by browser-compat-data mirroring from Chrome.
3. The property parses, but has no effect.
4. No Firefox for Android support is recorded in browser-compat-data.
5. Derived by browser-compat-data mirroring from Chrome Android.
6. Derived by browser-compat-data mirroring from Chrome Android.

Source data: /compatibility/manifest-id.json · Global usage: 90 % (StatCounter 2026-05)

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

See also

• Web app manifest id: a stable PWA identity
• Web Application Manifest: id member (w3.org)
• id (developer.mozilla.org)