diff --git a/files/en-us/_redirects.txt b/files/en-us/_redirects.txt
index 91aba3d4b18f09a..ce5a936063e0150 100644
--- a/files/en-us/_redirects.txt
+++ b/files/en-us/_redirects.txt
@@ -8471,6 +8471,9 @@
 /en-US/docs/Web/API/ParentNode.children	/en-US/docs/Web/API/ParentNode/children
 /en-US/docs/Web/API/ParentNode.firstElementChild	/en-US/docs/Web/API/ParentNode/firstElementChild
 /en-US/docs/Web/API/ParentNode.lastElementChild	/en-US/docs/Web/API/ParentNode/lastElementChild
+/en-US/docs/Web/API/PasswordCredential/additionalData	/en-US/docs/Web/API/PasswordCredential
+/en-US/docs/Web/API/PasswordCredential/idName	/en-US/docs/Web/API/PasswordCredential
+/en-US/docs/Web/API/PasswordCredential/passwordName	/en-US/docs/Web/API/PasswordCredential
 /en-US/docs/Web/API/Path2D.Path2D	/en-US/docs/Web/API/Path2D/Path2D
 /en-US/docs/Web/API/Path2D.addPath	/en-US/docs/Web/API/Path2D/addPath
 /en-US/docs/Web/API/PaymentAddress/PaymentAddress.country	/en-US/docs/Web/API/PaymentAddress/country
diff --git a/files/en-us/web/api/passwordcredential/additionaldata/index.html b/files/en-us/web/api/passwordcredential/additionaldata/index.html
deleted file mode 100644
index 4123b43bf793575..000000000000000
--- a/files/en-us/web/api/passwordcredential/additionaldata/index.html
+++ /dev/null
@@ -1,75 +0,0 @@
----
-title: PasswordCredential.additionalData
-slug: Web/API/PasswordCredential/additionalData
-tags:
-- API
-- Credential Management API
-- PasswordCredential
-- Property
-- Reference
-- credential management
----
-<p>{{SeeCompatTable}}{{APIRef("")}}{{Deprecated_header}}</p>
-
-<p><span class="seoSummary">The <strong><code>additionalData</code></strong> property of
-    the {{domxref("PasswordCredential")}} interface takes one of a {{domxref("FormData")}}
-    instance, a {{domxref("URLSearchParams")}} instance, or null.</span> The data in the
-  objects will be added to the request body and sent to the remote endpoint with the
-  credentials.</p>
-
-<h2 id="Syntax">Syntax</h2>
-
-<pre class="brush: js"><em>passwordCredential</em>.additionalData = formData
-<em>formData</em> = <em>passwordCredential</em>.additionalData
-passwordCredential.additionalData = urlSearchParams
-<em>ulrSearchParams</em> = <em>passwordCredential</em>.additionalData
-</pre>
-
-<h3 id="Value">Value</h3>
-
-<p>One of a {{domxref("FormData")}} instance, a {{domxref("URLSearchParams")}} instance,
-  or null.</p>
-
-<h2 id="Example">Example</h2>
-
-<p>The following example creates a {{domxref("FormData")}} object with an appended <a
-    href="/docs/Web/Security/Same-origin_policy#How_to_block_cross-origin_access">CSRF
-    token</a>. It then stores the form object in the additionalData parameter, before
-  sending it to server in a call to {{domxref("fetch")}}.</p>
-
-<pre class="brush: js">//The options object was previously created.
-navigator.credentials.get(options).then(function(creds) {
-  if (creds.type == 'password') {
-    var form = new FormData();
-    var csrf_token = document.querySelector('csrf_token').value;
-    form.append('csrf_token', csrf_token);
-
-    creds.additionalData = form;
-
-    fetch('https://www.example.com', {
-      method: 'POST',
-      credentials: creds
-    });
-  };
-});</pre>
-
-<h2 id="Specifications">Specifications</h2>
-
-<table class="standard-table">
-  <tbody>
-    <tr>
-      <th scope="col">Specification</th>
-      <th scope="col">Status</th>
-      <th scope="col">Comment</th>
-    </tr>
-    <tr>
-      <td>{{SpecName('Credential Management')}}</td>
-      <td>{{Spec2('Credential Management')}}</td>
-      <td>Initial definition.</td>
-    </tr>
-  </tbody>
-</table>
-
-<h2 id="Browser_compatibility">Browser compatibility</h2>
-
-<p>{{Compat("api.PasswordCredential.additionalData")}}</p>
diff --git a/files/en-us/web/api/passwordcredential/idname/index.html b/files/en-us/web/api/passwordcredential/idname/index.html
deleted file mode 100644
index 642591b31cd23f3..000000000000000
--- a/files/en-us/web/api/passwordcredential/idname/index.html
+++ /dev/null
@@ -1,55 +0,0 @@
----
-title: PasswordCredential.idName
-slug: Web/API/PasswordCredential/idName
-tags:
-- API
-- Credential Management API
-- NeedsExample
-- PasswordCredential
-- Property
-- Reference
-- credential management
----
-<p>{{SeeCompatTable}}{{APIRef("")}}{{Deprecated_header}}</p>
-
-<p><span class="seoSummary">The <strong><code>idName</code></strong> property of the
-    {{domxref("PasswordCredential")}} interface returns a {{domxref("USVString")}},
-    representing the name that will be used for the ID field</span>, when submitting the
-  current object to a remote endpoint via {{domxref("fetch")}}. This property defaults to
-  <code>'username'</code>, but may be set to match whatever your backend service expects.
-</p>
-
-<h2 id="Syntax">Syntax</h2>
-
-<pre class="brush: js">var idName = PasswordCredential.idName
-PasswordCredential.idName = "userID"</pre>
-
-<h3 id="Value">Value</h3>
-
-<p>A {{domxref("USVString")}} represents the name used for the ID field, when submitting
-  the current object to a remote endpoint via {{domxref("fetch")}}.</p>
-
-<h2 id="Example">Example</h2>
-
-<pre class="brush: js">// TBD</pre>
-
-<h2 id="Specifications">Specifications</h2>
-
-<table class="standard-table">
-  <tbody>
-    <tr>
-      <th scope="col">Specification</th>
-      <th scope="col">Status</th>
-      <th scope="col">Comment</th>
-    </tr>
-    <tr>
-      <td>{{SpecName('Credential Management')}}</td>
-      <td>{{Spec2('Credential Management')}}</td>
-      <td>Initial definition.</td>
-    </tr>
-  </tbody>
-</table>
-
-<h2 id="Browser_compatibility">Browser compatibility</h2>
-
-<p>{{Compat("api.PasswordCredential.idName")}}</p>
diff --git a/files/en-us/web/api/passwordcredential/index.html b/files/en-us/web/api/passwordcredential/index.html
index 75d9f78a35b10ee..65fac4d216fddea 100644
--- a/files/en-us/web/api/passwordcredential/index.html
+++ b/files/en-us/web/api/passwordcredential/index.html
@@ -29,18 +29,12 @@ <h2 id="Properties">Properties</h2>
 <p><em>Inherits properties from its ancestor, {{domxref("Credential")}}.</em></p>
 
 <dl>
- <dt>{{domxref("PasswordCredential.additionalData")}} {{deprecated_inline()}}{{securecontext_inline}}</dt>
- <dd>One of a {{domxref("FormData")}} instance, a {{domxref("URLSearchParams")}} instance, or null. The data in the objects will be added to the {{domxref("request")}} body and sent to the remote endpoint with the credentials.</dd>
  <dt>{{domxref("PasswordCredential.iconURL")}} {{readonlyinline}}{{securecontext_inline}}</dt>
  <dd>A {{domxref("USVString")}} containing a URL pointing to an image for an icon. This image is intended for display in a credential chooser. The URL must be accessible without authentication.</dd>
- <dt>{{domxref("PasswordCredential.idName")}} {{deprecated_inline()}}{{securecontext_inline}}</dt>
- <dd>A {{domxref("USVString")}} containing the name that will be used for the ID field when submitting the current object to a remote endpoint via {{domxref("fetch")}}. This property defaults to 'username', but may be overridden to match whatever the backend service expects.</dd>
  <dt>{{domxref("PasswordCredential.name")}} {{readonlyinline}}{{securecontext_inline}}</dt>
  <dd>A {{domxref("USVString")}} containing a human-readable public name for display in a credential chooser.</dd>
  <dt>{{domxref("PasswordCredential.password")}} {{readonlyinline}}{{securecontext_inline}}</dt>
  <dd>A {{domxref("USVString")}} containing the password of the credential.</dd>
- <dt>{{domxref("PasswordCredential.passwordName")}} {{deprecated_inline()}}{{securecontext_inline}}</dt>
- <dd>A {{domxref("USVString")}} representing the name that will be used for the password field when submitting the current object to a remote endpoint via {{domxref("fetch")}}. This property defaults to 'password', but may be overridden to match whatever the backend service expects.</dd>
 </dl>
 
 <h3 id="Event_handlers">Event handlers</h3>
diff --git a/files/en-us/web/api/passwordcredential/passwordname/index.html b/files/en-us/web/api/passwordcredential/passwordname/index.html
deleted file mode 100644
index 78832b2cbf52785..000000000000000
--- a/files/en-us/web/api/passwordcredential/passwordname/index.html
+++ /dev/null
@@ -1,55 +0,0 @@
----
-title: PasswordCredential.passwordName
-slug: Web/API/PasswordCredential/passwordName
-tags:
-- API
-- Credential Management API
-- NeedsExample
-- PasswordCredential
-- Property
-- Reference
-- credential management
----
-<p>{{SeeCompatTable}}{{APIRef("")}}{{Deprecated_header}}</p>
-
-<p><span class="seoSummary">The <strong><code>passwordName</code></strong> property of the
-    {{domxref("PasswordCredential")}} interface returns a {{domxref("USVString")}},
-    depicting the name used by the password field</span>, when submitting the current
-  object to a remote endpoint via {{domxref("fetch")}}. This property defaults to
-  <code>'password'</code>, but may be matched to anything your backend service expects.
-</p>
-
-<h2 id="Syntax">Syntax</h2>
-
-<pre class="brush: js">var passwordName = PasswordCredential.passwordName
-PasswordCredential.passwordName = "passcode"</pre>
-
-<h3 id="Value">Value</h3>
-
-<p>A  {{domxref("USVString")}} representing the password field name, used when submitting
-  the current object to a remote endpoint via {{domxref("fetch")}}.</p>
-
-<h2 id="Example">Example</h2>
-
-<pre class="brush: js">// TBD</pre>
-
-<h2 id="Specifications">Specifications</h2>
-
-<table class="standard-table">
-  <tbody>
-    <tr>
-      <th scope="col">Specification</th>
-      <th scope="col">Status</th>
-      <th scope="col">Comment</th>
-    </tr>
-    <tr>
-      <td>{{SpecName('Credential Management')}}</td>
-      <td>{{Spec2('Credential Management')}}</td>
-      <td>Initial definition.</td>
-    </tr>
-  </tbody>
-</table>
-
-<h2 id="Browser_compatibility">Browser compatibility</h2>
-
-<p>{{Compat("api.PasswordCredential.passwordName")}}</p>