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diff --git a/docs/code-quality/lint/linters/eslint-plugin-mozilla/use-cc-etc.rst b/docs/code-quality/lint/linters/eslint-plugin-mozilla/use-cc-etc.rst
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+use-cc-etc
+======================
+
+This requires using ``Cc`` rather than ``Components.classes``, and the same for
+``Components.interfaces``, ``Components.results`` and ``Components.utils``.
+This has a slight performance advantage by avoiding the use of the dot.
+
+Examples of incorrect code for this rule:
+-----------------------------------------
+
+.. code-block:: js
+
+    let foo = Components.classes['bar'];
+    let bar = Components.interfaces.bar;
+    Components.results.NS_ERROR_ILLEGAL_INPUT;
+    Components.utils.reportError('fake');
+
+Examples of correct code for this rule:
+---------------------------------------
+
+.. code-block:: js
+
+    let foo = Cc['bar'];
+    let bar = Ci.bar;
+    Cr.NS_ERROR_ILLEGAL_INPUT;
+    Cu.reportError('fake');