diff --git a/app/dataFile.js b/app/dataFile.js
index 9a80ca6311d..cbe32d87137 100644
--- a/app/dataFile.js
+++ b/app/dataFile.js
@@ -99,8 +99,16 @@ module.exports.init = (resourceName, startExtension, onInitDone, forceDownload)
     // it's used directly
     // console.log('done init:', resourceName)
     cachedDataFiles[resourceName] = data
-    onInitDone(data)
-    startExtension()
+    if (onInitDone(data)) {
+      startExtension()
+    } else {
+      console.error(`Failed to deserialize data file for resource: ${resourceName}`)
+      fs.unlink(storagePath(url), (err) => {
+        if (err) {
+          console.error(`Could not remove unserializable data file for resource: ${resourceName}`)
+        }
+      })
+    }
   }
 
   const loadProcess = (resourceName, version) =>
diff --git a/app/httpsEverywhere.js b/app/httpsEverywhere.js
index 02119e81c98..2fdfb093ba5 100644
--- a/app/httpsEverywhere.js
+++ b/app/httpsEverywhere.js
@@ -28,6 +28,7 @@ function loadRulesets (data) {
   var parsedData = JSON.parse(data)
   targets = parsedData.targets
   db = parsedData.rulesetStrings
+  return true
 }
 
 /**