diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b0f790e2..1bfce7058 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@ The links to individual versions below are to copies of the script with the upda
 
 ### v1.11.3
 
+**v1.11.3.1** *(2015-07-04)* - [[Firefox](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.3.1/builds/4chan-X-noupdate.user.js "Firefox version")] [[Chromium](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.3.1/builds/4chan-X-noupdate.crx "Chromium version")]
+- Make posting from URL more efficient, and make it work in Tampermonkey.
+
 **v1.11.3.0** *(2015-07-04)* - [[Firefox](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.3.0/builds/4chan-X-noupdate.user.js "Firefox version")] [[Chromium](https://raw.githubusercontent.com/ccd0/4chan-x/1.11.3.0/builds/4chan-X-noupdate.crx "Chromium version")]
 - Based on v1.11.2.4.
 - Improved Tampermonkey and WebKit support.
diff --git a/builds/4chan-X-beta.crx b/builds/4chan-X-beta.crx
index 51698749e..59c51dbf5 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 9a3a9bf28..c6bbb4230 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      1.11.3.0
+// @version      1.11.3.1
 // @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 e03357060..7227526c5 100644
--- a/builds/4chan-X-beta.user.js
+++ b/builds/4chan-X-beta.user.js
@@ -1,7 +1,7 @@
 // Generated by CoffeeScript
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.11.3.0
+// @version      1.11.3.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -412,7 +412,7 @@
   doc = d.documentElement;
 
   g = {
-    VERSION: '1.11.3.0',
+    VERSION: '1.11.3.1',
     NAMESPACE: '4chan X.',
     boards: {}
   };
@@ -4920,22 +4920,27 @@
   CrossOrigin = (function() {
     return {
       binary: function(url, cb, headers) {
+        var options, workaround;
         if (headers == null) {
           headers = {};
         }
-        return GM_xmlhttpRequest({
+        workaround = !GM_info.scriptHandler && /^[12]\.|^3\.[01](?!\d)/.test(GM_info.version);
+        options = {
           method: "GET",
           url: url,
           headers: headers,
-          overrideMimeType: "text/plain; charset=x-user-defined",
           onload: function(xhr) {
             var contentDisposition, contentType, data, i, r, ref, ref1;
-            r = xhr.responseText;
-            data = new Uint8Array(r.length);
-            i = 0;
-            while (i < r.length) {
-              data[i] = r.charCodeAt(i);
-              i++;
+            if (workaround) {
+              r = xhr.responseText;
+              data = new Uint8Array(r.length);
+              i = 0;
+              while (i < r.length) {
+                data[i] = r.charCodeAt(i);
+                i++;
+              }
+            } else {
+              data = new Uint8Array(xhr.response);
             }
             contentType = (ref = xhr.responseHeaders.match(/Content-Type:\s*(.*)/i)) != null ? ref[1] : void 0;
             contentDisposition = (ref1 = xhr.responseHeaders.match(/Content-Disposition:\s*(.*)/i)) != null ? ref1[1] : void 0;
@@ -4947,7 +4952,13 @@
           onabort: function() {
             return cb(null);
           }
-        });
+        };
+        if (workaround) {
+          options.overrideMimeType = 'text/plain; charset=x-user-defined';
+        } else {
+          options.responseType = 'arraybuffer';
+        }
+        return GM_xmlhttpRequest(options);
       },
       file: function(url, cb) {
         return CrossOrigin.binary(url, function(data, contentType, contentDisposition) {
diff --git a/builds/4chan-X-noupdate.crx b/builds/4chan-X-noupdate.crx
index d655be62d..06ca7e2ac 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 3e1f53aac..73be69837 100644
--- a/builds/4chan-X-noupdate.user.js
+++ b/builds/4chan-X-noupdate.user.js
@@ -1,7 +1,7 @@
 // Generated by CoffeeScript
 // ==UserScript==
 // @name         4chan X
-// @version      1.11.3.0
+// @version      1.11.3.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -411,7 +411,7 @@
   doc = d.documentElement;
 
   g = {
-    VERSION: '1.11.3.0',
+    VERSION: '1.11.3.1',
     NAMESPACE: '4chan X.',
     boards: {}
   };
@@ -4919,22 +4919,27 @@
   CrossOrigin = (function() {
     return {
       binary: function(url, cb, headers) {
+        var options, workaround;
         if (headers == null) {
           headers = {};
         }
-        return GM_xmlhttpRequest({
+        workaround = !GM_info.scriptHandler && /^[12]\.|^3\.[01](?!\d)/.test(GM_info.version);
+        options = {
           method: "GET",
           url: url,
           headers: headers,
-          overrideMimeType: "text/plain; charset=x-user-defined",
           onload: function(xhr) {
             var contentDisposition, contentType, data, i, r, ref, ref1;
-            r = xhr.responseText;
-            data = new Uint8Array(r.length);
-            i = 0;
-            while (i < r.length) {
-              data[i] = r.charCodeAt(i);
-              i++;
+            if (workaround) {
+              r = xhr.responseText;
+              data = new Uint8Array(r.length);
+              i = 0;
+              while (i < r.length) {
+                data[i] = r.charCodeAt(i);
+                i++;
+              }
+            } else {
+              data = new Uint8Array(xhr.response);
             }
             contentType = (ref = xhr.responseHeaders.match(/Content-Type:\s*(.*)/i)) != null ? ref[1] : void 0;
             contentDisposition = (ref1 = xhr.responseHeaders.match(/Content-Disposition:\s*(.*)/i)) != null ? ref1[1] : void 0;
@@ -4946,7 +4951,13 @@
           onabort: function() {
             return cb(null);
           }
-        });
+        };
+        if (workaround) {
+          options.overrideMimeType = 'text/plain; charset=x-user-defined';
+        } else {
+          options.responseType = 'arraybuffer';
+        }
+        return GM_xmlhttpRequest(options);
       },
       file: function(url, cb) {
         return CrossOrigin.binary(url, function(data, contentType, contentDisposition) {
diff --git a/builds/4chan-X.crx b/builds/4chan-X.crx
index 7e2a14a04..d9677d740 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 b73cc4a13..2b7fb9ad7 100644
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.11.3.0
+// @version      1.11.3.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index e82a0b092..a76948544 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1,7 +1,7 @@
 // Generated by CoffeeScript
 // ==UserScript==
 // @name         4chan X
-// @version      1.11.3.0
+// @version      1.11.3.1
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -412,7 +412,7 @@
   doc = d.documentElement;
 
   g = {
-    VERSION: '1.11.3.0',
+    VERSION: '1.11.3.1',
     NAMESPACE: '4chan X.',
     boards: {}
   };
@@ -4920,22 +4920,27 @@
   CrossOrigin = (function() {
     return {
       binary: function(url, cb, headers) {
+        var options, workaround;
         if (headers == null) {
           headers = {};
         }
-        return GM_xmlhttpRequest({
+        workaround = !GM_info.scriptHandler && /^[12]\.|^3\.[01](?!\d)/.test(GM_info.version);
+        options = {
           method: "GET",
           url: url,
           headers: headers,
-          overrideMimeType: "text/plain; charset=x-user-defined",
           onload: function(xhr) {
             var contentDisposition, contentType, data, i, r, ref, ref1;
-            r = xhr.responseText;
-            data = new Uint8Array(r.length);
-            i = 0;
-            while (i < r.length) {
-              data[i] = r.charCodeAt(i);
-              i++;
+            if (workaround) {
+              r = xhr.responseText;
+              data = new Uint8Array(r.length);
+              i = 0;
+              while (i < r.length) {
+                data[i] = r.charCodeAt(i);
+                i++;
+              }
+            } else {
+              data = new Uint8Array(xhr.response);
             }
             contentType = (ref = xhr.responseHeaders.match(/Content-Type:\s*(.*)/i)) != null ? ref[1] : void 0;
             contentDisposition = (ref1 = xhr.responseHeaders.match(/Content-Disposition:\s*(.*)/i)) != null ? ref1[1] : void 0;
@@ -4947,7 +4952,13 @@
           onabort: function() {
             return cb(null);
           }
-        });
+        };
+        if (workaround) {
+          options.overrideMimeType = 'text/plain; charset=x-user-defined';
+        } else {
+          options.responseType = 'arraybuffer';
+        }
+        return GM_xmlhttpRequest(options);
       },
       file: function(url, cb) {
         return CrossOrigin.binary(url, function(data, contentType, contentDisposition) {
diff --git a/builds/4chan-X.zip b/builds/4chan-X.zip
index abcd17c84..898a986ad 100644
Binary files a/builds/4chan-X.zip and b/builds/4chan-X.zip differ
diff --git a/builds/updates-beta.xml b/builds/updates-beta.xml
index 4d7ab88b5..62ba39c81 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://ccd0.github.io/4chan-x/builds/4chan-X-beta.crx' version='1.11.3.0' />
+    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/4chan-X-beta.crx' version='1.11.3.1' />
   </app>
 </gupdate>
 
diff --git a/builds/updates.xml b/builds/updates.xml
index a91c5084a..96ea75cb2 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://ccd0.github.io/4chan-x/builds/4chan-X.crx' version='1.11.3.0' />
+    <updatecheck codebase='https://ccd0.github.io/4chan-x/builds/4chan-X.crx' version='1.11.3.1' />
   </app>
 </gupdate>
 
diff --git a/package.json b/package.json
index fb73b080a..242ccb3ad 100755
--- a/package.json
+++ b/package.json
@@ -3,8 +3,8 @@
   "description": "Cross-browser userscript for maximum lurking on 4chan.",
   "meta": {
     "name": "4chan X",
-    "version": "1.11.3.0",
-    "date": "2015-07-04T20:11:44.204Z",
+    "version": "1.11.3.1",
+    "date": "2015-07-04T21:55:48.953Z",
     "repo": "https://github.com/ccd0/4chan-x/",
     "page": "https://github.com/ccd0/4chan-x",
     "downloads": "https://ccd0.github.io/4chan-x/builds/",