Beginner’s Guide! How to Enable or Disable JavaScript on PC & Smartphone

This time, we will clearly explain how to enable or disable JavaScript in browsers on your computer or smartphone. JavaScript is a programming language that makes websites more convenient and dynamic. By using it, websites become more interactive, but disabling it can sometimes improve security.

Now, let’s take a look at how to change the settings in each browser.

Settings on Windows PC

Chrome

1. Click the three dots (menu button) in the top right corner and select “Settings.”
2. Click “Privacy and security” and select “Site settings.”
3. Find “JavaScript” and toggle it on or off.

Microsoft Edge

1. Click the three dots in the top right corner and select “Settings.”
2. Click “Cookies and site permissions,” then select “JavaScript” to configure.

Firefox

1. Click the three bars (menu) in the top right corner and select “Options.”
2. Click “Privacy & Security,” choose “Custom,” and select “Block JavaScript.”

Settings on Mac

Chrome

1. Follow the same steps as for Windows.

Safari

1. From the Safari menu, select “Preferences” and open the “Security” tab.
2. In the “Web content” section, check “Enable JavaScript.”

Firefox

1. Follow the same steps as for Windows.

Settings on Mac

Chrome

1. Follow the same steps as for Windows.

Safari

1. From the Safari menu, select “Preferences” and open the “Security” tab.
2. In the “Web content” section, check “Enable JavaScript.”

Firefox

1. Follow the same steps as for Windows.

Settings on iOS Smartphone

Chrome

1. In Chrome for iOS, you cannot change JavaScript settings.

Safari

1. Open the “Settings” app and select “Safari.”
2. Select “Advanced” and turn “JavaScript” on or off.

Firefox

1. In Firefox for iOS, you cannot change JavaScript settings either.

Settings on Android Smartphone

Chrome

1. In Chrome for Android, you cannot change JavaScript settings.

Firefox

1. Tap the menu button and select “Settings.”
2. Tap “Privacy & Security,” then select “JavaScript” from “Site settings” to configure.

What Happens If You Disable JavaScript?

Disabling JavaScript may reduce certain security risks. However, since many websites rely on JavaScript, some features may be limited or may not work at all. Form submissions, dynamic content display, and interactive features are often affected. Therefore, it is recommended to enable JavaScript for specific sites as needed.

JavaScript settings differ depending on the browser and device, but by following this guide, you should be able to change the settings smoothly. For a safe and comfortable web experience, find the settings that suit you best.

　
*Please use this information at your own risk.