diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f558d772..6b15bfaed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 ### v1.13.15
 
+**v1.13.15.6** *(2018-01-25)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.15.6/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.15.6/builds/4chan-X-noupdate.crx)]
+- Bugfix to captcha opening logic. Don't ask user for new captchas when we have a bypass cookie or at least one captcha, even when many posts are queued.
+- Don't save captchas to disk or share them between tabs. They are too short-lived to be worth it now. This should reduce associated I/O errors.
+
 **v1.13.15.5** *(2018-01-23)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.15.5/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.13.15.5/builds/4chan-X-noupdate.crx)]
 - Add link in settings to captcha FAQ.
 
diff --git a/builds/4chan-X-beta.crx b/builds/4chan-X-beta.crx
index f0db1e5c8..90fa4241a 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 669ab5ff2..03090cdcc 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      1.13.15.5
+// @version      1.13.15.6
 // @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 c71ad42ee..4b94a6539 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      1.13.15.5
+// @version      1.13.15.6
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -159,7 +159,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.13.15.5',
+  VERSION:   '1.13.15.6',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -5259,7 +5259,7 @@ $ = (function() {
     });
     $.clear = function(cb) {
       $["delete"](Object.keys(Conf));
-      $["delete"](['previousversion', 'QR Size', 'captchas', 'QR.persona', 'hiddenPSA']);
+      $["delete"](['previousversion', 'QR Size', 'QR.persona', 'hiddenPSA']);
       try {
         $["delete"]($.listValues().map(function(key) {
           return key.replace(g.NAMESPACE, '');
@@ -20154,15 +20154,6 @@ Captcha = {};
 (function() {
   Captcha.cache = {
     init: function() {
-      $.get('captchas', [], (function(_this) {
-        return function(arg) {
-          var captchas;
-          captchas = arg.captchas;
-          _this.sync(captchas);
-          return _this.clear();
-        };
-      })(this));
-      $.sync('captchas', this.sync.bind(this));
       return $.on(d, 'SaveCaptcha', (function(_this) {
         return function(e) {
           return _this.save(e.detail);
@@ -20174,26 +20165,7 @@ Captcha = {};
       return this.captchas.length;
     },
     needed: function() {
-      var captchaCount, postsCount;
-      captchaCount = this.captchas.length;
-      if (QR.req || /\b_ct=/.test(d.cookie)) {
-        captchaCount++;
-      }
-      postsCount = QR.posts.length;
-      if (postsCount === 1 && !Conf['Auto-load captcha'] && !QR.posts[0].com && !QR.posts[0].file) {
-        postsCount = 0;
-      }
-      return captchaCount < postsCount;
-    },
-    sync: function(captchas) {
-      if (captchas == null) {
-        captchas = [];
-      }
-      if (!(captchas instanceof Array)) {
-        captchas = [];
-      }
-      this.captchas = captchas;
-      return this.count();
+      return !(/\b_ct=/.test(d.cookie) || this.captchas.length || QR.req) && (QR.posts.length > 1 || Conf['Auto-load captcha'] || QR.posts[0].com || QR.posts[0].file);
     },
     getOne: function(isReply) {
       var captcha, i;
@@ -20203,7 +20175,6 @@ Captcha = {};
       });
       if (i >= 0) {
         captcha = this.captchas.splice(i, 1)[0];
-        $.set('captchas', this.captchas);
         this.count();
         return captcha;
       } else {
@@ -20211,17 +20182,14 @@ Captcha = {};
       }
     },
     save: function(captcha) {
-      $.forceSync('captchas');
       this.captchas.push(captcha);
       this.captchas.sort(function(a, b) {
         return a.timeout - b.timeout;
       });
-      $.set('captchas', this.captchas);
       return this.count();
     },
     clear: function() {
       var captcha, i, j, len, now, ref;
-      $.forceSync('captchas');
       if (this.captchas.length) {
         now = Date.now();
         ref = this.captchas;
@@ -20233,7 +20201,6 @@ Captcha = {};
         }
         if (i) {
           this.captchas = this.captchas.slice(i);
-          $.set('captchas', this.captchas);
           return this.count();
         }
       }
diff --git a/builds/4chan-X-noupdate.crx b/builds/4chan-X-noupdate.crx
index 9714fad35..3c4ff365a 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 5d321aa5f..12b6a4f16 100644
--- a/builds/4chan-X-noupdate.user.js
+++ b/builds/4chan-X-noupdate.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.13.15.5
+// @version      1.13.15.6
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -159,7 +159,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.13.15.5',
+  VERSION:   '1.13.15.6',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -5259,7 +5259,7 @@ $ = (function() {
     });
     $.clear = function(cb) {
       $["delete"](Object.keys(Conf));
-      $["delete"](['previousversion', 'QR Size', 'captchas', 'QR.persona', 'hiddenPSA']);
+      $["delete"](['previousversion', 'QR Size', 'QR.persona', 'hiddenPSA']);
       try {
         $["delete"]($.listValues().map(function(key) {
           return key.replace(g.NAMESPACE, '');
@@ -20154,15 +20154,6 @@ Captcha = {};
 (function() {
   Captcha.cache = {
     init: function() {
-      $.get('captchas', [], (function(_this) {
-        return function(arg) {
-          var captchas;
-          captchas = arg.captchas;
-          _this.sync(captchas);
-          return _this.clear();
-        };
-      })(this));
-      $.sync('captchas', this.sync.bind(this));
       return $.on(d, 'SaveCaptcha', (function(_this) {
         return function(e) {
           return _this.save(e.detail);
@@ -20174,26 +20165,7 @@ Captcha = {};
       return this.captchas.length;
     },
     needed: function() {
-      var captchaCount, postsCount;
-      captchaCount = this.captchas.length;
-      if (QR.req || /\b_ct=/.test(d.cookie)) {
-        captchaCount++;
-      }
-      postsCount = QR.posts.length;
-      if (postsCount === 1 && !Conf['Auto-load captcha'] && !QR.posts[0].com && !QR.posts[0].file) {
-        postsCount = 0;
-      }
-      return captchaCount < postsCount;
-    },
-    sync: function(captchas) {
-      if (captchas == null) {
-        captchas = [];
-      }
-      if (!(captchas instanceof Array)) {
-        captchas = [];
-      }
-      this.captchas = captchas;
-      return this.count();
+      return !(/\b_ct=/.test(d.cookie) || this.captchas.length || QR.req) && (QR.posts.length > 1 || Conf['Auto-load captcha'] || QR.posts[0].com || QR.posts[0].file);
     },
     getOne: function(isReply) {
       var captcha, i;
@@ -20203,7 +20175,6 @@ Captcha = {};
       });
       if (i >= 0) {
         captcha = this.captchas.splice(i, 1)[0];
-        $.set('captchas', this.captchas);
         this.count();
         return captcha;
       } else {
@@ -20211,17 +20182,14 @@ Captcha = {};
       }
     },
     save: function(captcha) {
-      $.forceSync('captchas');
       this.captchas.push(captcha);
       this.captchas.sort(function(a, b) {
         return a.timeout - b.timeout;
       });
-      $.set('captchas', this.captchas);
       return this.count();
     },
     clear: function() {
       var captcha, i, j, len, now, ref;
-      $.forceSync('captchas');
       if (this.captchas.length) {
         now = Date.now();
         ref = this.captchas;
@@ -20233,7 +20201,6 @@ Captcha = {};
         }
         if (i) {
           this.captchas = this.captchas.slice(i);
-          $.set('captchas', this.captchas);
           return this.count();
         }
       }
diff --git a/builds/4chan-X.crx b/builds/4chan-X.crx
index a14c23fa3..6ded9b125 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 5a4f493b1..ced2d454d 100644
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.13.15.5
+// @version      1.13.15.6
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index 877ca8fee..2e7a55283 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.13.15.5
+// @version      1.13.15.6
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -159,7 +159,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.13.15.5',
+  VERSION:   '1.13.15.6',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -5259,7 +5259,7 @@ $ = (function() {
     });
     $.clear = function(cb) {
       $["delete"](Object.keys(Conf));
-      $["delete"](['previousversion', 'QR Size', 'captchas', 'QR.persona', 'hiddenPSA']);
+      $["delete"](['previousversion', 'QR Size', 'QR.persona', 'hiddenPSA']);
       try {
         $["delete"]($.listValues().map(function(key) {
           return key.replace(g.NAMESPACE, '');
@@ -20154,15 +20154,6 @@ Captcha = {};
 (function() {
   Captcha.cache = {
     init: function() {
-      $.get('captchas', [], (function(_this) {
-        return function(arg) {
-          var captchas;
-          captchas = arg.captchas;
-          _this.sync(captchas);
-          return _this.clear();
-        };
-      })(this));
-      $.sync('captchas', this.sync.bind(this));
       return $.on(d, 'SaveCaptcha', (function(_this) {
         return function(e) {
           return _this.save(e.detail);
@@ -20174,26 +20165,7 @@ Captcha = {};
       return this.captchas.length;
     },
     needed: function() {
-      var captchaCount, postsCount;
-      captchaCount = this.captchas.length;
-      if (QR.req || /\b_ct=/.test(d.cookie)) {
-        captchaCount++;
-      }
-      postsCount = QR.posts.length;
-      if (postsCount === 1 && !Conf['Auto-load captcha'] && !QR.posts[0].com && !QR.posts[0].file) {
-        postsCount = 0;
-      }
-      return captchaCount < postsCount;
-    },
-    sync: function(captchas) {
-      if (captchas == null) {
-        captchas = [];
-      }
-      if (!(captchas instanceof Array)) {
-        captchas = [];
-      }
-      this.captchas = captchas;
-      return this.count();
+      return !(/\b_ct=/.test(d.cookie) || this.captchas.length || QR.req) && (QR.posts.length > 1 || Conf['Auto-load captcha'] || QR.posts[0].com || QR.posts[0].file);
     },
     getOne: function(isReply) {
       var captcha, i;
@@ -20203,7 +20175,6 @@ Captcha = {};
       });
       if (i >= 0) {
         captcha = this.captchas.splice(i, 1)[0];
-        $.set('captchas', this.captchas);
         this.count();
         return captcha;
       } else {
@@ -20211,17 +20182,14 @@ Captcha = {};
       }
     },
     save: function(captcha) {
-      $.forceSync('captchas');
       this.captchas.push(captcha);
       this.captchas.sort(function(a, b) {
         return a.timeout - b.timeout;
       });
-      $.set('captchas', this.captchas);
       return this.count();
     },
     clear: function() {
       var captcha, i, j, len, now, ref;
-      $.forceSync('captchas');
       if (this.captchas.length) {
         now = Date.now();
         ref = this.captchas;
@@ -20233,7 +20201,6 @@ Captcha = {};
         }
         if (i) {
           this.captchas = this.captchas.slice(i);
-          $.set('captchas', this.captchas);
           return this.count();
         }
       }
diff --git a/builds/4chan-X.zip b/builds/4chan-X.zip
index 479797007..c66e3ad84 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 413b6bb6a..0ee2b2cfe 100644
--- a/builds/updates-beta.json
+++ b/builds/updates-beta.json
@@ -3,7 +3,7 @@
     "4chan-x@4chan-x.net": {
       "updates": [
         {
-          "version": "1.13.15.5",
+          "version": "1.13.15.6",
           "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 6f812dfb6..1349b7da3 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='1.13.15.5' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.13.15.6' />
   </app>
 </gupdate>
 
diff --git a/builds/updates.json b/builds/updates.json
index dffa620f5..f56e0813d 100644
--- a/builds/updates.json
+++ b/builds/updates.json
@@ -3,7 +3,7 @@
     "4chan-x@4chan-x.net": {
       "updates": [
         {
-          "version": "1.13.15.5",
+          "version": "1.13.15.6",
           "update_link": "https://www.4chan-x.net/builds/4chan-X.crx"
         }
       ]
diff --git a/builds/updates.xml b/builds/updates.xml
index 5e48c2308..22b90d059 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='1.13.15.5' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.13.15.6' />
   </app>
 </gupdate>
 
diff --git a/version.json b/version.json
index db07d6bb7..e873b846a 100644
--- a/version.json
+++ b/version.json
@@ -1,4 +1,4 @@
 {
-  "version": "1.13.15.5",
-  "date": "2018-01-23T21:09:54.187Z"
+  "version": "1.13.15.6",
+  "date": "2018-01-25T00:49:44.705Z"
 }
\ No newline at end of file