This has just been delayed a cycle (now likely Firefox 121 instead of 120) due to some bugs found in Nightly. Remaining enabled in Nightly but not beta or release yet.
On Wed, Oct 18, 2023 at 3:10 PM Oliver Medhurst <[email protected]> wrote: > As of today (Firefox 120), I intend to turn on iframe lazy loading by > default on all platforms. It has a flag (dom.iframe_lazy_loading.enabled), > but it is being enabled by default in the same implementation patch as it > is a low-risk feature and we pass web platform tests. Chromium and WebKit > already ship it at this time. > > Summary: > Lazy loading iframes (<iframe loading=lazy>) allow websites to defer > loading an iframe until it is in view to speed up first page loads and > reduce initial network usage by specifying the element's loading attribute > as "lazy". We have supported lazy loading images since Firefox 75. > > Bug: https://bugzil.la/1622090 > Specification: https://html.spec.whatwg.org/#attr-iframe-loading > Standards body: WHATWG (HTML) > Platform coverage: All > > Preference: dom.iframe_lazy_loading.enabled (on by default) > DevTools bug: None > Standards position: > https://github.com/mozilla/standards-positions/issues/840 > > Other browsers: > - Blink: Shipped since Chrome 77 > - WebKit: Shipped since Safari 16.4 > > Web platform tests: > https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element?q=lazy > (I also plan to add more for edge cases in the patch and future) > -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/mozilla.org/d/msgid/dev-platform/CAKxzt6a1kKZLfwkpVhsQ25Kwd1VSkZ828r27RzwZZUffSthhWw%40mail.gmail.com.
