JavaScript is a dynamic programming language that is used by websites to provide interactive user experience. It is used to make webpages more interactive and dynamic.

Mobile Browsers

• What is Mac OS X? Mac® OS X® is an operating system for personal computers (PC), created by Apple. Now rebranded as macOS, it runs on Apple devices like the Macbook and iMac, and allows you to manage files and run other programs like web browsers, video games and even screensavers.
• Java manual download page. Get the latest version of the Java Runtime Environment (JRE) for Windows, Mac, Solaris, and Linux.

Desktop PC Browsers

Guidelines for web developers

You might consider linking to this JavaScript download site to notify your script-disabled users on how to enable JavaScript in their browser. Feel free to customize text according to your own needs.

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Chrome Mobile

1. Open the Chrome Browser on your phone.
2. Tap the menu icon by clicking ⋮ on the right-top of your screen.
3. Tap on settings.
4. Under the Advance section, tap on Site settings.
5. Tap on JavaScript.
6. Turn on JavaScript and browse your favorite sites.

Safari on Apple iPhone

1. Open the Setting app.
2. Find Safari and tap on it.
3. Find Advanced at the bottom.
4. Turn on JavaScript by swiping the button if it’s disabled.
5. Enjoy your favorite sites with JavaScript Enabled Browser.

Google Chrome

You do not need to download JavaScript in the Google Chrome browser; it’s part of the browser. Follow this setting to enable JS in your browser on Windows 10, Windows 7, or macOS.

1. Open the Google Chrome menu by clicking the menu button (⋮) on the right top of the browser.
2. Click on Settings.
3. Scroll down to the Privacy and security section.
4. Click on Site settings.
5. Scroll down to the Content section and click on JavaScript.
6. Enable JavaScript if it’s disabled.
7. It will show “Allowed” when JavaScript is enabled.

Apple Safari on Mac

1. In the top toolbar menu, click on Safari.
2. Click on Preferences in the drop down menu.
3. Go to the Security tab.
4. Click on the Enable JavaScript check box to enable JavaScript.

Mozilla Firefox

1. Click on the address bar where you type website URLs.
2. Write or copy-paste about:config
3. Accept the warning by clicking on Accept the Risk and Continue.
4. In the search box type JavaScript.
5. Find the javascript.enabled setting.
6. If it shows false next to it, it means you have JS disabled.
7. Click on the icon next to it to enable.

Opera Browser

1. Click on the Opera icon to open the menu.
2. Select the Setting in the drop-down menu. Or you can use ALT+P to open the setting directly.
3. Under the Privacy and security section, click on Site settings.
4. Find JavaScript and click on it.
5. Turn it on if it’s turned off.

It’s also possible to open the JavaScript settings directly by typing opera://settings/content/javascript in the URL bar.

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Microsoft Edge

1. Open the menu on the right-top side by clicking on three dots.
2. Choose the setting option in the menu.
3. On the left-hand side, select Site permissions.
4. Find JavaScript in the list options.
5. Enable it using the toggle button if it’s disabled.

How to Download JavaScript?

JavaScript is built into all the modern browsers, including Chrome, Safari, Firefox, Microsoft Edge, Opera, etc. If you are getting JavaScript disabled error on websites, it might be turned off on your PC or Mobile.

How to Start JavaScript?

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If JavaScript is enabled in the web browser, it will automatically execute JavaScript files on any website you open. If JavaScript is disabled, you can follow the steps on this page to enable it.