diff --git a/src/lib/extensions.js b/src/lib/extensions.js
index 51c2f2aa6..bc066e2df 100644
--- a/src/lib/extensions.js
+++ b/src/lib/extensions.js
@@ -425,6 +425,14 @@ export default [
         creator: "Monochromasity",
         isGitHub: true,
     },
+    {
+        name: "New Windows",
+        description: "Lets you open websites in new windows.",
+        code: "Monochromasity/newwindows.js",
+        banner: "Monochromasity/newwindows.png",
+        creator: "Monochromasity",
+        isGithub: true,
+    },
     {
         name: "Paint Utils",
         description: "A colour extension that lets you mix colours.",
diff --git a/static/extensions/Monochromasity/newwindows.js b/static/extensions/Monochromasity/newwindows.js
new file mode 100644
index 000000000..73ea388c4
--- /dev/null
+++ b/static/extensions/Monochromasity/newwindows.js
@@ -0,0 +1,243 @@
+// Name: New Windows
+// ID: monowindows
+// Description: Lets you open websites in new windows.
+// By: Monochromasity
+
+(function (Scratch) {
+  "use strict";
+  
+  let menubar = "no";
+  let status = "no";
+  let titlebar = "no";
+  let full = "no";
+  let location = "no";
+  let resizable = "no";
+  let scroll = "no";
+  let toolbar = "no";
+  let replace = "false";
+
+  class NewWindows {
+    getInfo() {
+      return {
+        id: 'monowindows',
+        color1: '#297bff',
+        name: 'New Windows',
+        blocks: [
+          {
+            opcode: 'openwindow',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'open website [WEB] in new window with ID: [ID] width: [WIDTH] height: [HEIGHT] distance from left: [LEFT] distance from top: [TOP]',
+            arguments: {
+              WEB: {
+                type: Scratch.ArgumentType.STRING,
+                defaultValue: 'https://penguinmod.com'
+              },
+              ID: {
+                type: Scratch.ArgumentType.STRING,
+                defaultValue: 'myWindow'
+              },
+              WIDTH: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: '400'
+              },
+              HEIGHT: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: '400'
+              },
+              LEFT: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: '0'
+              },
+              TOP: {
+                type: Scratch.ArgumentType.NUMBER,
+                defaultValue: '0'
+              }
+            }
+          },
+          {
+            opcode: 'setproperty',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'set window property [PROPERTY] to [TOGGLE]',
+            arguments: {
+              PROPERTY: {
+                type: Scratch.ArgumentType.STRING,
+                menu: 'PROPERTY'
+              },
+              TOGGLE: {
+                type: Scratch.ArgumentType.STRING,
+                menu: 'TOGGLE'
+              }
+            }
+          },
+          {
+            opcode: 'reset',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'reset properties to default',
+            hideFromPalette: true
+          },
+          {
+            opcode: 'getproperty',
+            blockType: Scratch.BlockType.REPORTER,
+            text: 'get value of property [PROPERTY]',
+            arguments: {
+              PROPERTY: {
+                type: Scratch.ArgumentType.STRING,
+                menu: 'PROPERTY'
+              }
+            }
+          },
+          {
+            opcode: 'closewithid',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'close window with id [ID]',
+            arguments: {
+              ID: {
+                type: Scratch.ArgumentType.STRING,
+                defaultValue: 'myWindow'
+              }
+            }
+          },
+          {
+            opcode: 'isopen',
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: 'is window with ID [ID] open?',
+            arguments: {
+              ID: {
+                type: Scratch.ArgumentType.STRING,
+                defaultValue: 'myWindow'
+              }
+            }
+          }
+        ],
+        menus: {
+          PROPERTY: {
+            acceptReporters: true,
+            items: [
+              {
+                text: 'menu bar',
+                value: 'menubar'
+              },
+              {
+                text: 'status bar',
+                value: 'status'
+              },
+              {
+                text: 'title bar',
+                value: 'titlebar'
+              },
+              {
+                text: 'fullscreen (IE only)',
+                value: 'full'
+              },
+              {
+                text: 'address field (Opera only)',
+                value: 'location'
+              },
+              {
+                text: 'resizable (IE only)',
+                value: 'resizable'
+              },
+              {
+                text: 'scrollbars (IE, Firefox, Opera only)',
+                value: 'scroll',
+              },
+              {
+                text: 'toolbar (IE, Firefox)',
+                value: 'toolbar',
+              },
+              {
+                text: 'replace (Deprecated)',
+                value: 'replace'
+              }
+            ]
+          },
+          TOGGLE: {
+            acceptReporters: true,
+            items: [
+              {
+                text: 'true',
+                value: 'yes'
+              },
+              {
+                text: 'false',
+                value: 'no'
+              }
+            ]
+          }
+        }
+      };
+    }
+
+    openwindow(args) {
+      let web = args.WEB;
+      let iduf = args.ID;
+      let id = iduf.toLowerCase();
+      let width = args.WIDTH;
+      let height = args.HEIGHT;
+      let strstart = "width=";
+      let left = Math.abs(Number(args.LEFT));
+      let top = Math.abs(Number(args.TOP));
+      let str = strstart.concat(width, ",height=", height, ",fullscreen=", full, ",left=", left, ",top=", top, ",menubar=", menubar, ",status=", status, ",titlebar=", titlebar, ",location=", location, ",resizable=", resizable, ",scrollbars=", scroll, ",toolbar=", toolbar);
+      console.log(str);
+      let name = "windows" + id;
+      this[name] = window.open(web, '', str, replace);
+    }
+    closewithid(args) {
+      let iduf = args.ID;
+      let id = iduf.toLowerCase();
+      let name = "windows" + id;
+      this[name].close();
+    }
+    isopen(args) {
+      let iduf = args.ID;
+      let id = iduf.toLowerCase();
+      let name = "windows" + id;
+      try {
+        if (!this[name].closed) {
+          return true;
+        } else {
+          return false;
+        }
+      }
+      catch(err) {
+        return false;
+      }
+    }
+    setproperty(args) {
+      let title = args.PROPERTY;
+      if (title == "replace") {
+        let toggle = args.TOGGLE;
+        if (toggle == "yes") {
+          this[title] = "true";
+        } else if (toggle == "no") {
+          this[title] = "false";
+        }
+      } else {
+        this[title] = args.TOGGLE;
+      }
+    }
+    reset() {
+      menubar = "no";
+      status = "no";
+      titlebar = "no";
+      full = "no";
+      location = "no";
+      resizable = "no";
+      scroll = "no";
+      toolbar = "no";
+      replace = "false";
+    }
+    getproperty(args) {
+      let title = args.PROPERTY;
+      let propval = this[title];
+      if (propval == "yes") {
+        return true;
+      } else if (propval == "no") {
+        return false;
+      } else {
+        return propval;
+      }
+    }
+  }
+  Scratch.extensions.register(new NewWindows());
+})(Scratch);
diff --git a/static/images/Monochromasity/newwindows.png b/static/images/Monochromasity/newwindows.png
new file mode 100644
index 000000000..eda78e54f
Binary files /dev/null and b/static/images/Monochromasity/newwindows.png differ