diff --git a/lib/renderer/extensions/i18n.js b/lib/renderer/extensions/i18n.js
index 5085365c7beb..d6362e3954f2 100644
--- a/lib/renderer/extensions/i18n.js
+++ b/lib/renderer/extensions/i18n.js
@@ -8,9 +8,13 @@ const {ipcRenderer} = require('electron')
 const fs = require('fs')
 const path = require('path')
 
+let metadata
+
 const getExtensionMetadata = () => {
-  // FIXME(kevinsawicki) Either cache this or don't use sync IPC to obtain it
-  return ipcRenderer.sendSync('CHROME_I18N_MANIFEST', chrome.runtime.id)
+  if (!metadata) {
+    metadata = ipcRenderer.sendSync('CHROME_I18N_MANIFEST', chrome.runtime.id)
+  }
+  return metadata
 }
 
 const getMessagesPath = (language) => {