How to Enable JavaScript on Opera

Opera基于Chromium内核构建，因此JavaScript设置与Chrome相似。步骤：

1. 打开Opera，点击窗口右上角的简易设置（或三条横线菜单）。
2. 向下滚动并选择前往浏览器设置（或直接在地址栏输入opera://settings）。
3. 在左侧栏选择隐私和安全。
4. 依次点击网站设置 → JavaScript。
5. 选择网站可以使用JavaScript。

在Opera的地址栏中输入opera://settings/content/javascript，即可一键跳转到JavaScript设置页。

Opera默认启用JavaScript，所以上述操作主要用于在被关闭后恢复，或针对单个网站做精细控制。Opera GX（游戏向版本）的步骤完全相同。

The Opera JavaScript toggle is in the same place on Windows 10 and Windows 11 - the browser ships an identical Settings UI on both. Opera 105 and later (the modern Chromium-based release) follows these six steps:

Step 1: Open Opera

Launch Opera from your Start menu or taskbar.

Step 2: Open the Easy Setup menu

Click the red Opera "O" menu in the top-left corner, or open the Easy Setup panel in the top-right. Either entry point reaches the Settings page.

Step 3: Open Site settings

Inside Settings, click Privacy & security in the left sidebar (you may need to expand Advanced first), then choose Site Settings.

Step 4: Open the JavaScript permission

Scroll to the Content section and click JavaScript. The shortcut opera://settings/content/javascript jumps straight here.

Step 5: Select Sites can use JavaScript

Under Default behavior, choose Sites can use JavaScript. Opera saves the change instantly.

Step 6: Verify (optional) - and how to turn it off

To confirm, reload any interactive site (YouTube, Gmail, Facebook). If you ever need the opposite, pick Don't allow sites to use JavaScript on the same screen:

JavaScript is now enabled across every site you visit. The same flow works for Opera GX - the gaming-themed sibling shares the same Chromium settings UI. Add specific sites to the Not allowed list on the same page if you want to block scripts only on certain pages.

The macOS version of Opera - on macOS Sonoma, Sequoia, and macOS 26 - uses the same Chromium-based Settings UI as the Windows build. Follow these five steps:

Step 1: Open Opera

Launch Opera from your Dock, Launchpad, or Applications folder.

Step 2: Open Settings, then Site Settings

From the macOS menu bar choose Opera → Settings... (or press Cmd+,). In the Settings page sidebar, click Privacy & security, then choose Site Settings.

Step 3: Open the JavaScript permission

Scroll to the Content section and click JavaScript. The shortcut opera://settings/content/javascript jumps straight here.

Step 4: Select Sites can use JavaScript

Under Default behavior, choose Sites can use JavaScript. The change saves immediately.

Step 5: How to turn it back off

To disable JavaScript later, return to the same screen and pick Don't allow sites to use JavaScript:

That's it. Reload any interactive site (YouTube, Gmail, Google Docs) to confirm scripts now run as expected. The same flow works for Opera GX on macOS - the gaming-themed sibling shares the same Chromium settings UI.

On iPhone and iPad, every browser - including Opera, Opera GX, Chrome, Edge, Firefox, Brave, and DuckDuckGo - is required by Apple to use the system WebKit engine. That means there is no JavaScript toggle inside the Opera iOS app itself. The setting that controls JavaScript for Opera on iOS lives in the system Settings → Apps → Safari → Advanced screen, and it applies to every browser at once.

Step 1: Open the Settings app

Tap the gray gear icon on your home screen or App Library to launch iOS Settings.

Step 2: Open Apps

Scroll down and tap Apps. (On iOS 17 and earlier, Safari appears directly in the main Settings list - tap it instead.)

Step 3: Select Safari

Inside Apps, scroll to and tap Safari. This is where iOS controls the WebKit engine that Opera iOS uses behind the scenes.

Step 4: Tap Advanced

Scroll to the bottom of the Safari settings page and tap Advanced.

Step 5: Enable JavaScript

Toggle the JavaScript switch on (green). The change applies immediately to Opera, Safari, and every other iOS browser.

Step 6: How to turn it off again

To disable JavaScript later, flip the same switch off (gray). Note that almost every modern site will break without it.

Now switch back to Opera iOS and reload your tab - JavaScript is on (or off) for every browser on the device.

如果不想全局开关JavaScript，而是只控制某些网站：

1. 打开目标网站。
2. 点击地址栏左侧的锁形图标。
3. 选择网站设置。
4. 找到JavaScript，选择允许或阻止。
5. 刷新页面以应用更改。

或者您可以通过opera://settings/content/javascript直接管理网站的"允许"和"阻止"列表。