diff --git a/package.json b/package.json
index 7023ac3b5..e04666cee 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,7 @@
   ],
   "devDependencies": {
     "@types/chrome": "0.0.74",
+    "@types/extract-zip": "1.6.2",
     "@types/gsap": "1.19.2",
     "@types/leveldown": "4.0.0",
     "@types/levelup": "3.1.0",
@@ -72,6 +73,7 @@
     "electron-builder": "20.28.4",
     "electron-react-devtools": "0.5.3",
     "electron-updater": "3.1.2",
+    "extract-zip": "1.6.7",
     "gsap": "2.0.2",
     "levelup": "3.1.1",
     "mobx": "5.5.0",
diff --git a/src/main/index.ts b/src/main/index.ts
index 72336059f..a57b4413e 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -12,6 +12,7 @@ import {
   runExtensionsService,
   runWebRequestService,
 } from '@/services/main';
+import extract from 'extract-zip';
 
 ipcMain.setMaxListeners(0);
 
@@ -71,6 +72,18 @@ if (shouldQuit) {
       }
     }
 
+    if (!existsSync(resolve(getPath('extensions'), 'uBlock0.chromium'))) {
+      extract(
+        resolve(__dirname, 'static/extensions/ublock.zip'),
+        { dir: getPath('extensions') },
+        err => {
+          if (err) console.error(err);
+
+          loadExtensions(mainWindow);
+        },
+      );
+    }
+
     mainWindow = createWindow();
 
     loadExtensions(mainWindow);
diff --git a/src/shared/utils/main/extensions.ts b/src/shared/utils/main/extensions.ts
index 9d9cf290d..d13748e02 100644
--- a/src/shared/utils/main/extensions.ts
+++ b/src/shared/utils/main/extensions.ts
@@ -97,6 +97,10 @@ export const loadExtensions = async (window: BrowserWindow) => {
 
         const id = dir;
 
+        if (global.extensions[id]) {
+          return;
+        }
+
         global.extensions[id] = manifest;
 
         const extensionStoragePath = getPath(
diff --git a/src/shared/utils/main/window.ts b/src/shared/utils/main/window.ts
index 6db8551c4..264d16c29 100644
--- a/src/shared/utils/main/window.ts
+++ b/src/shared/utils/main/window.ts
@@ -1,6 +1,7 @@
 import { BrowserWindow, app } from 'electron';
 import { readFileSync, writeFileSync, existsSync } from 'fs';
-import { join } from 'path';
+import { join, resolve } from 'path';
+import os from 'os';
 
 import { getPath } from '@/utils/paths';
 import { WindowState } from '@/interfaces/main';
@@ -22,7 +23,7 @@ export const createWindow = () => {
   }
 
   let windowData: Electron.BrowserWindowConstructorOptions = {
-    frame: process.env.ENV === 'dev',
+    frame: process.env.ENV === 'dev' || os.platform() === 'darwin',
     minWidth: 400,
     minHeight: 450,
     width: 900,
@@ -32,6 +33,7 @@ export const createWindow = () => {
     webPreferences: {
       plugins: true,
     },
+    icon: resolve(__dirname, 'static/app-icons/icon.png'),
   };
 
   // Merge bounds from the last window state to the current window options.
@@ -67,8 +69,6 @@ export const createWindow = () => {
     writeFileSync(windowDataPath, JSON.stringify(windowState));
   });
 
-  window.webContents.openDevTools({ mode: 'detach' });
-
   if (process.env.ENV === 'dev') {
     window.webContents.openDevTools({ mode: 'detach' });
     window.loadURL('http://localhost:8080/app.html');
diff --git a/static/extensions/ublock.zip.REMOVED.git-id b/static/extensions/ublock.zip.REMOVED.git-id
new file mode 100644
index 000000000..c8be52aad
--- /dev/null
+++ b/static/extensions/ublock.zip.REMOVED.git-id
@@ -0,0 +1 @@
+341023d54ef7964ebd56bc4bbd54931d432d4220
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index ae81e9893..39e23b0f6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -43,6 +43,10 @@
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@types/events/-/events-1.2.0.tgz#81a6731ce4df43619e5c8c945383b3e62a89ea86"
 
+"@types/extract-zip@1.6.2":
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/@types/extract-zip/-/extract-zip-1.6.2.tgz#5c7eb441c41136167a42b88b64051e6260c29e86"
+
 "@types/filesystem@*":
   version "0.0.29"
   resolved "https://registry.yarnpkg.com/@types/filesystem/-/filesystem-0.0.29.tgz#ee3748eb5be140dcf980c3bd35f11aec5f7a3748"
@@ -1908,7 +1912,7 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-extract-zip@^1.0.3:
+extract-zip@1.6.7, extract-zip@^1.0.3:
   version "1.6.7"
   resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.7.tgz#a840b4b8af6403264c8db57f4f1a74333ef81fe9"
   dependencies: