diff --git a/dom/base/Document.cpp b/dom/base/Document.cpp
index 0b7c4de9ed213..67d88f8e27e0d 100644
--- a/dom/base/Document.cpp
+++ b/dom/base/Document.cpp
@@ -17539,6 +17539,11 @@ bool Document::ModuleScriptsEnabled() {
          StaticPrefs::dom_moduleScripts_enabled();
 }
 
+bool Document::ImportMapsEnabled() {
+  return nsContentUtils::IsChromeDoc(this) ||
+         StaticPrefs::dom_importMaps_enabled();
+}
+
 void Document::ReportShadowDOMUsage() {
   nsPIDOMWindowInner* inner = GetInnerWindow();
   if (NS_WARN_IF(!inner)) {
diff --git a/dom/base/Document.h b/dom/base/Document.h
index 948130e213573..1a4bbd6613337 100644
--- a/dom/base/Document.h
+++ b/dom/base/Document.h
@@ -3986,6 +3986,8 @@ class Document : public nsINode,
 
   bool ModuleScriptsEnabled();
 
+  bool ImportMapsEnabled();
+
   /**
    * Find the (non-anonymous) content in this document for aFrame. It will
    * be aFrame's content node if that content is in this document and not
diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index aa8bd6e2931a1..2dc476fa692db 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -2797,6 +2797,12 @@
   value: true
   mirror: always
 
+# Is support for import maps (<script type="importmap">) enabled for content?
+- name: dom.importMaps.enabled
+  type: bool
+  value: false
+  mirror: always
+
 # Whether we disable triggering mutation events for changes to style
 # attribute via CSSOM.
 # NOTE: This preference is used in unit tests. If it is removed or its default