diff --git a/js/modules/PageInfo.js b/js/modules/PageInfo.js
index a04901e..fd496e1 100644
--- a/js/modules/PageInfo.js
+++ b/js/modules/PageInfo.js
@@ -26,6 +26,9 @@ class PageInfo {
     if(Debug.debug){
       console.log("[PageInfo::destroy] destroying all videos!")
     }
+    if(this.rescanTimer){
+      clearTimeout(this.rescanTimer);
+    }
     for (var video of this.videos) {
       video.destroy();
     }
diff --git a/manifest.json b/manifest.json
index 2ee8143..da4e0a6 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Ultrawidify",
-  "version": "3.0.2a",
+  "version": "3.1.0a",
   "applications": {
     "gecko": {
       "id": "{cf02b1a7-a01a-4e37-a609-516a283f1ed3}"