** COEP: credentialless is enabled in Firefox Desktop by default since Firefox 119, you only need to request an origin trial if you need it for Firefox Android.
* [https://bugzilla.mozilla.org/show_bug.cgi?id=1898047 1900929 Privacy Preserving Attribution]: See [https://groups.google.com/a/mozilla.org/g/dev-platform/c/D6GZiXW_Da8/m/RNX3usF5AAAJ intent to experiment].
== Requesting a trial for your website ==