diff --git a/files/en-us/web/api/htmlfieldsetelement/disabled/index.md b/files/en-us/web/api/htmlfieldsetelement/disabled/index.md
new file mode 100644
index 000000000000000..dc619fa0e5274b5
--- /dev/null
+++ b/files/en-us/web/api/htmlfieldsetelement/disabled/index.md
@@ -0,0 +1,38 @@
+---
+title: "HTMLFieldSetElement: disabled property"
+short-title: disabled
+slug: Web/API/HTMLFieldSetElement/disabled
+page-type: web-api-instance-property
+browser-compat: api.HTMLFieldSetElement.disabled
+---
+
+{{ APIRef("HTML DOM") }}
+
+The **`disabled`** property of the {{domxref("HTMLFieldSetElement")}} interface is a boolean value that reflects the {{htmlelement("fieldset")}} element's [`disabled`](/en-US/docs/Web/HTML/Element/fieldset#disabled) attribute, which indicates whether the control is disabled.
+
+When disabled, all the form control descendants of the `<fieldset>` element, excluding elements that are descendants of the {{htmlelement("legend")}} child of the `<fieldset>`, if any, are disabled. A disabled element is unusable and un-clickable, and match the {{cssxref(":disabled")}} selector, even if their `disabled` property value is false.
+
+## Value
+
+A boolean value.
+
+## Examples
+
+```js
+const fs = document.getElementById("billing-address");
+console.log(fs.disabled);
+fs.disabled = true;
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}
+
+## See also
+
+- HTML [`disabled`](/en-US/docs/Web/HTML/Attributes/disabled) attribute
+- CSS {{cssxref(":disabled")}} and {{cssxref(":enabled")}} pseudoclasses
diff --git a/files/en-us/web/api/htmloptgroupelement/disabled/index.md b/files/en-us/web/api/htmloptgroupelement/disabled/index.md
new file mode 100644
index 000000000000000..e068628ff97337f
--- /dev/null
+++ b/files/en-us/web/api/htmloptgroupelement/disabled/index.md
@@ -0,0 +1,38 @@
+---
+title: "HTMLOptGroupElement: disabled property"
+short-title: disabled
+slug: Web/API/HTMLOptGroupElement/disabled
+page-type: web-api-instance-property
+browser-compat: api.HTMLOptGroupElement.disabled
+---
+
+{{ APIRef("HTML DOM") }}
+
+The **`disabled`** property of the {{domxref("HTMLOptGroupElement")}} interface is a boolean value that reflects the {{htmlelement("optgroup")}} element's [`disabled`](/en-US/docs/Web/HTML/Element/optgroup#disabled) attribute, which indicates whether the control is disabled.
+
+When disabled, the {{htmlelement("option")}} element descendants of the `<optgroup>` element are unusable, un-clickable, and unselectable. These disabled `<option>`s will match the {{cssxref(":disabled")}} selector, even if their `disabled` property value is false.
+
+## Value
+
+A boolean value.
+
+## Examples
+
+```js
+const optionGroup = document.getElementById("groupB");
+console.log(optionGroup.disabled);
+optionGroup.disabled = true;
+```
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}
+
+## See also
+
+- HTML [`disabled`](/en-US/docs/Web/HTML/Attributes/disabled) attribute
+- CSS {{cssxref(":disabled")}} and {{cssxref(":enabled")}} pseudoclasses