diff --git a/public/popup.html b/public/popup.html
index b50dcfc..d506342 100644
--- a/public/popup.html
+++ b/public/popup.html
@@ -204,7 +204,7 @@
                   data-settings="reload_delay_time"
                 />
               </div>
-            </div>  
+            </div>
           </div>
           <!-- reCAPTCHA -->
           <div class="tab-content" data-tab="recaptcha">
diff --git a/src/background.js b/src/background.js
index f030bbb..2bf95bf 100644
--- a/src/background.js
+++ b/src/background.js
@@ -49,6 +49,7 @@ chrome.runtime.onInstalled.addListener(async () => {
 });
 
 const kvStorage = {};
+let fakeIdToId = {};
 chrome.runtime.onMessage.addListener(function (
   { type, label },
   sender,
@@ -66,7 +67,36 @@ chrome.runtime.onMessage.addListener(function (
         label.key = `${sender.tab.id}_${label.key}`;
       }
       sendResponse({ status: 'success', value: kvStorage[label.key] });
+    } else if (type === 'HackTimer') {
+      if (label.name === 'setInterval') {
+        fakeIdToId[label.fakeId] = setInterval(function () {
+          triggerTimer(label.name, sender.tab.id, label.fakeId);
+        }, label.time);
+      } else if (label.name === 'clearInterval') {
+        clearInterval(fakeIdToId[label.fakeId]);
+        delete fakeIdToId[label.fakeId];
+      } else if (label.name === 'setTimeout') {
+        fakeIdToId[label.fakeId] = setTimeout(function () {
+          triggerTimer(label.name, sender.tab.id, label.fakeId);
+          delete fakeIdToId[label.fakeId];
+        }, label.time);
+      } else if (label.name === 'clearTimeout') {
+        clearTimeout(fakeIdToId[label.fakeId]);
+        delete fakeIdToId[label.fakeId];
+      }
     }
   })();
   return true;
 });
+
+async function triggerTimer(name, tabId, fakeId) {
+  try {
+    await chrome.tabs.sendMessage(tabId, {
+      type: 'HackTimer',
+      label: { fakeId },
+    });
+  } catch (error) {
+    if (name === 'setInterval') clearInterval(fakeIdToId[fakeId]);
+    delete fakeIdToId[fakeId];
+  }
+}
diff --git a/src/hacktimer.js b/src/hacktimer.js
new file mode 100644
index 0000000..f80aeb8
--- /dev/null
+++ b/src/hacktimer.js
@@ -0,0 +1,98 @@
+let fakeIdToCallback = {},
+  lastFakeId = 0,
+  maxFakeId = 0x7fffffff; // 2 ^ 31 - 1, 31 bit, positive values of signed 32 bit integer
+window.fakeIdToCallback = fakeIdToCallback;
+
+function getFakeId() {
+  do {
+    if (lastFakeId === maxFakeId) {
+      lastFakeId = 0;
+    } else {
+      lastFakeId++;
+    }
+  } while (fakeIdToCallback.hasOwnProperty(lastFakeId));
+  return lastFakeId;
+}
+
+window.setInterval = function (callback, time /* , parameters */) {
+  let fakeId = getFakeId();
+  fakeIdToCallback[fakeId] = {
+    callback: callback,
+    parameters: Array.prototype.slice.call(arguments, 2),
+  };
+  chrome.runtime.sendMessage({
+    type: 'HackTimer',
+    label: {
+      name: 'setInterval',
+      fakeId,
+      time,
+    },
+  });
+  return fakeId;
+};
+window.clearInterval = function (fakeId) {
+  if (fakeIdToCallback.hasOwnProperty(fakeId)) {
+    delete fakeIdToCallback[fakeId];
+    chrome.runtime.sendMessage({
+      type: 'HackTimer',
+      label: {
+        name: 'clearInterval',
+        fakeId,
+      },
+    });
+  }
+};
+window.setTimeout = function (callback, time /* , parameters */) {
+  let fakeId = getFakeId();
+  fakeIdToCallback[fakeId] = {
+    callback: callback,
+    parameters: Array.prototype.slice.call(arguments, 2),
+    isTimeout: true,
+  };
+  chrome.runtime.sendMessage({
+    type: 'HackTimer',
+    label: {
+      name: 'setTimeout',
+      fakeId,
+      time,
+    },
+  });
+  return fakeId;
+};
+window.clearTimeout = function (fakeId) {
+  if (fakeIdToCallback.hasOwnProperty(fakeId)) {
+    delete fakeIdToCallback[fakeId];
+    chrome.runtime.sendMessage({
+      type: 'HackTimer',
+      label: {
+        name: 'clearTimeout',
+        fakeId,
+      },
+    });
+  }
+};
+
+chrome.runtime.onMessage.addListener(function (
+  { type, label } /*, sender, sendResponse*/
+) {
+  if (type === 'HackTimer') {
+    let fakeId = label.fakeId,
+      request,
+      parameters,
+      callback;
+    if (fakeIdToCallback.hasOwnProperty(fakeId)) {
+      request = fakeIdToCallback[fakeId];
+      callback = request.callback;
+      parameters = request.parameters;
+      if (request.hasOwnProperty('isTimeout') && request.isTimeout) {
+        delete fakeIdToCallback[fakeId];
+      }
+    }
+    if (typeof callback === 'string') {
+      console.error('Callback is not supported as string');
+    }
+    if (typeof callback === 'function') {
+      callback.apply(window, parameters);
+    }
+  }
+});
diff --git a/src/hcaptcha.js b/src/hcaptcha.js
index 94ab173..fadb6dc 100644
--- a/src/hcaptcha.js
+++ b/src/hcaptcha.js
@@ -13,6 +13,7 @@
 
 import Jimp from 'jimp';
 import { Time } from './utils';
+require('./hacktimer.js');
 const ort = require('onnxruntime-web');
 
 // Modify ort wasm path
diff --git a/src/recaptcha.js b/src/recaptcha.js
index efdd870..40f4b97 100644
--- a/src/recaptcha.js
+++ b/src/recaptcha.js
@@ -14,6 +14,7 @@
 import Jimp from 'jimp';
 import { KVStorage, Time } from './utils.js';
 
+require('./hacktimer.js');
 const ort = require('onnxruntime-web');
 
 // Modify ort wasm path