diff --git a/dom/security/metrics.yaml b/dom/security/metrics.yaml
index db6d29e9f80e..e05399062276 100644
--- a/dom/security/metrics.yaml
+++ b/dom/security/metrics.yaml
@@ -304,3 +304,33 @@ security:
     expires: never
     extra_keys: *security_evalUsage_extra
     telemetry_mirror: Security_Evalusage_Parentprocess
+
+  javascript_load_parent_process:
+    type: event
+    description: >
+      The javascript engine requested to load a filename that was not
+      allowed. Expected values, and fileinfo key, are the same possible
+      values as above in 'evalUsage'
+      This event was generated to correspond to the Legacy Telemetry event
+      security.javascriptLoad#parentProcess.
+    bugs:
+      - https://bugzil.la/1582512
+    data_reviews:
+      - https://bugzil.la/1582512
+    notification_emails:
+      - tom@mozilla.com
+      - gijs@mozilla.com
+    expires: never
+    extra_keys:
+      value:
+        description: >
+          The `value` of the event. Mirrors to the Legacy Telemetry
+          event's `value` parameter.
+          The filename's type, see
+          `nsContentSecurityUtils::FilenameToFilenameType(...)`.
+        type: string
+      fileinfo:
+        description: >
+          Information about the filename that was requested to be loaded
+        type: string
+    telemetry_mirror: Security_Javascriptload_Parentprocess
diff --git a/dom/security/nsContentSecurityUtils.cpp b/dom/security/nsContentSecurityUtils.cpp
index 8cc18b03b3dc..0a88c9584b40 100644
--- a/dom/security/nsContentSecurityUtils.cpp
+++ b/dom/security/nsContentSecurityUtils.cpp
@@ -46,8 +46,6 @@
 #include "mozilla/StaticPrefs_extensions.h"
 #include "mozilla/StaticPrefs_dom.h"
 #include "mozilla/Telemetry.h"
-#include "mozilla/TelemetryComms.h"
-#include "mozilla/TelemetryEventEnums.h"
 #include "nsIConsoleService.h"
 #include "nsIStringBundle.h"
 
@@ -1573,27 +1571,18 @@ bool nsContentSecurityUtils::ValidateScriptFilename(JSContext* cx,
   MOZ_LOG(sCSMLog, LogLevel::Error,
           ("ValidateScriptFilename Failed: %s\n", aFilename));
 
-  // Send Telemetry
   FilenameTypeAndDetails fileNameTypeAndDetails =
       FilenameToFilenameType(filename, true);
 
-  Telemetry::EventID eventType =
-      Telemetry::EventID::Security_Javascriptload_Parentprocess;
-
-  mozilla::Maybe<nsTArray<EventExtraEntry>> extra;
-  if (fileNameTypeAndDetails.second.isSome()) {
-    extra = Some<nsTArray<EventExtraEntry>>({EventExtraEntry{
-        "fileinfo"_ns, fileNameTypeAndDetails.second.value()}});
-  } else {
-    extra = Nothing();
-  }
-
   if (!sTelemetryEventEnabled.exchange(true)) {
     sTelemetryEventEnabled = true;
     Telemetry::SetEventRecordingEnabled("security"_ns, true);
   }
-  Telemetry::RecordEvent(eventType, mozilla::Some(fileNameTypeAndDetails.first),
-                         extra);
+  glean::security::JavascriptLoadParentProcessExtra extra = {
+      .fileinfo = fileNameTypeAndDetails.second,
+      .value = Some(fileNameTypeAndDetails.first),
+  };
+  glean::security::javascript_load_parent_process.Record(Some(extra));
 
 #if defined(DEBUG) || defined(FUZZING)
   auto crashString = nsContentSecurityUtils::SmartFormatCrashString(