diff --git a/CHANGELOG.md b/CHANGELOG.md
index b44c0ef1a..97193c9c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 ### v1.13.13
 
+**v1.13.13.1** *(2017-10-18)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.13.1/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.13.1/builds/4chan-X-noupdate.crx)]
+- Fix setting clearing/importing in GM4. #1531
+- Fix issue with new Tampermonkey version on Edge. #1534
+
 **v1.13.13.0** *(2017-10-09)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.13.0/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.13.0/builds/4chan-X-noupdate.crx)]
 - Based on v1.13.12.3.
 - Experimental support for installing the Chrome extension version in Firefox.
diff --git a/builds/4chan-X-beta.crx b/builds/4chan-X-beta.crx
index 7817b1d7f..0147c8599 100644
Binary files a/builds/4chan-X-beta.crx and b/builds/4chan-X-beta.crx differ
diff --git a/builds/4chan-X-beta.meta.js b/builds/4chan-X-beta.meta.js
index c4f029ab6..f53693147 100644
--- a/builds/4chan-X-beta.meta.js
+++ b/builds/4chan-X-beta.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.13.13.0
+// @version      1.13.13.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X-beta.user.js b/builds/4chan-X-beta.user.js
index ce4a667d8..cb08a077a 100644
--- a/builds/4chan-X-beta.user.js
+++ b/builds/4chan-X-beta.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.13.13.0
+// @version      1.13.13.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -159,7 +159,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.13.13.0',
+  VERSION:   '1.13.13.1',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -4979,7 +4979,7 @@ $ = (function() {
 
   $.syncing = {};
 
-  if ((typeof GM !== "undefined" && GM !== null ? GM.deleteValue : void 0) != null) {
+  if (((typeof GM !== "undefined" && GM !== null ? GM.deleteValue : void 0) != null) && window.BroadcastChannel && (typeof GM_addValueChangeListener === "undefined" || GM_addValueChangeListener === null)) {
     $.syncChannel = new BroadcastChannel(g.NAMESPACE + 'sync');
     $.on($.syncChannel, 'message', function(e) {
       var cb, key, ref, results, val;
@@ -5059,7 +5059,7 @@ $ = (function() {
       });
     });
     $.clear = function(cb) {
-      return GM.listValues.then(function(keys) {
+      return GM.listValues().then(function(keys) {
         return $["delete"](keys.map(function(key) {
           return key.replace(g.NAMESPACE, '');
         }), cb);
@@ -24569,14 +24569,20 @@ Main = (function() {
 
   Main = {
     init: function() {
-      var db, flatten, i, items, j, k, key, len, ref;
+      var db, flatten, i, items, j, k, key, len, ref, w;
       if (d.body && !$('title', d.head)) {
         return;
       }
-      if (window['4chan X antidup']) {
-        return;
-      }
-      window['4chan X antidup'] = true;
+      try {
+        w = window;
+        if ($.platform === 'crx') {
+          w = w.wrappedJSObject || w;
+        }
+        if ('4chan X antidup' in w) {
+          return;
+        }
+        w['4chan X antidup'] = true;
+      } catch (_error) {}
       if (location.hostname === 'www.google.com') {
         if (location.pathname === '/recaptcha/api/noscript') {
           $.ready(function() {
diff --git a/builds/4chan-X-noupdate.crx b/builds/4chan-X-noupdate.crx
index c7c6b8c20..ca80b42ff 100644
Binary files a/builds/4chan-X-noupdate.crx and b/builds/4chan-X-noupdate.crx differ
diff --git a/builds/4chan-X-noupdate.user.js b/builds/4chan-X-noupdate.user.js
index 320115e42..d83ead8fa 100644
--- a/builds/4chan-X-noupdate.user.js
+++ b/builds/4chan-X-noupdate.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.13.13.0
+// @version      1.13.13.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -159,7 +159,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.13.13.0',
+  VERSION:   '1.13.13.1',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -4979,7 +4979,7 @@ $ = (function() {
 
   $.syncing = {};
 
-  if ((typeof GM !== "undefined" && GM !== null ? GM.deleteValue : void 0) != null) {
+  if (((typeof GM !== "undefined" && GM !== null ? GM.deleteValue : void 0) != null) && window.BroadcastChannel && (typeof GM_addValueChangeListener === "undefined" || GM_addValueChangeListener === null)) {
     $.syncChannel = new BroadcastChannel(g.NAMESPACE + 'sync');
     $.on($.syncChannel, 'message', function(e) {
       var cb, key, ref, results, val;
@@ -5059,7 +5059,7 @@ $ = (function() {
       });
     });
     $.clear = function(cb) {
-      return GM.listValues.then(function(keys) {
+      return GM.listValues().then(function(keys) {
         return $["delete"](keys.map(function(key) {
           return key.replace(g.NAMESPACE, '');
         }), cb);
@@ -24569,14 +24569,20 @@ Main = (function() {
 
   Main = {
     init: function() {
-      var db, flatten, i, items, j, k, key, len, ref;
+      var db, flatten, i, items, j, k, key, len, ref, w;
       if (d.body && !$('title', d.head)) {
         return;
       }
-      if (window['4chan X antidup']) {
-        return;
-      }
-      window['4chan X antidup'] = true;
+      try {
+        w = window;
+        if ($.platform === 'crx') {
+          w = w.wrappedJSObject || w;
+        }
+        if ('4chan X antidup' in w) {
+          return;
+        }
+        w['4chan X antidup'] = true;
+      } catch (_error) {}
       if (location.hostname === 'www.google.com') {
         if (location.pathname === '/recaptcha/api/noscript') {
           $.ready(function() {
diff --git a/builds/4chan-X.crx b/builds/4chan-X.crx
index 0884be26b..399fd4a63 100644
Binary files a/builds/4chan-X.crx and b/builds/4chan-X.crx differ
diff --git a/builds/4chan-X.meta.js b/builds/4chan-X.meta.js
index 9cdd3fcc6..bf827b6f9 100644
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.13.13.0
+// @version      1.13.13.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index ccd5e6cc6..4aa2e60d2 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.13.13.0
+// @version      1.13.13.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -159,7 +159,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.13.13.0',
+  VERSION:   '1.13.13.1',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -4979,7 +4979,7 @@ $ = (function() {
 
   $.syncing = {};
 
-  if ((typeof GM !== "undefined" && GM !== null ? GM.deleteValue : void 0) != null) {
+  if (((typeof GM !== "undefined" && GM !== null ? GM.deleteValue : void 0) != null) && window.BroadcastChannel && (typeof GM_addValueChangeListener === "undefined" || GM_addValueChangeListener === null)) {
     $.syncChannel = new BroadcastChannel(g.NAMESPACE + 'sync');
     $.on($.syncChannel, 'message', function(e) {
       var cb, key, ref, results, val;
@@ -5059,7 +5059,7 @@ $ = (function() {
       });
     });
     $.clear = function(cb) {
-      return GM.listValues.then(function(keys) {
+      return GM.listValues().then(function(keys) {
         return $["delete"](keys.map(function(key) {
           return key.replace(g.NAMESPACE, '');
         }), cb);
@@ -24569,14 +24569,20 @@ Main = (function() {
 
   Main = {
     init: function() {
-      var db, flatten, i, items, j, k, key, len, ref;
+      var db, flatten, i, items, j, k, key, len, ref, w;
       if (d.body && !$('title', d.head)) {
         return;
       }
-      if (window['4chan X antidup']) {
-        return;
-      }
-      window['4chan X antidup'] = true;
+      try {
+        w = window;
+        if ($.platform === 'crx') {
+          w = w.wrappedJSObject || w;
+        }
+        if ('4chan X antidup' in w) {
+          return;
+        }
+        w['4chan X antidup'] = true;
+      } catch (_error) {}
       if (location.hostname === 'www.google.com') {
         if (location.pathname === '/recaptcha/api/noscript') {
           $.ready(function() {
diff --git a/builds/4chan-X.zip b/builds/4chan-X.zip
index c2bb36497..01fbe8f0f 100644
Binary files a/builds/4chan-X.zip and b/builds/4chan-X.zip differ
diff --git a/builds/updates-beta.json b/builds/updates-beta.json
index 708485cd5..1b30746e5 100644
--- a/builds/updates-beta.json
+++ b/builds/updates-beta.json
@@ -3,7 +3,7 @@
     "4chan-x@4chan-x.net": {
       "updates": [
         {
-          "version": "1.13.13.0",
+          "version": "1.13.13.1",
           "update_link": "https://www.4chan-x.net/builds/4chan-X-beta.crx"
         }
       ]
diff --git a/builds/updates-beta.xml b/builds/updates-beta.xml
index 55bc7528a..a804975f4 100644
--- a/builds/updates-beta.xml
+++ b/builds/updates-beta.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.13.13.0' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.13.13.1' />
   </app>
 </gupdate>
 
diff --git a/builds/updates.json b/builds/updates.json
index 18a006f32..2c13b5f6d 100644
--- a/builds/updates.json
+++ b/builds/updates.json
@@ -3,7 +3,7 @@
     "4chan-x@4chan-x.net": {
       "updates": [
         {
-          "version": "1.13.13.0",
+          "version": "1.13.13.1",
           "update_link": "https://www.4chan-x.net/builds/4chan-X.crx"
         }
       ]
diff --git a/builds/updates.xml b/builds/updates.xml
index 6c990bc3c..45fc66a99 100644
--- a/builds/updates.xml
+++ b/builds/updates.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.13.13.0' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.13.13.1' />
   </app>
 </gupdate>
 
diff --git a/version.json b/version.json
index a118fe79c..9c2f7a2bd 100644
--- a/version.json
+++ b/version.json
@@ -1,4 +1,4 @@
 {
-  "version": "1.13.13.0",
-  "date": "2017-10-09T00:36:31.712Z"
+  "version": "1.13.13.1",
+  "date": "2017-10-18T03:50:27.794Z"
 }
\ No newline at end of file