How to Enable JavaScript in Google Chrome, Firefox, Microsoft Edge, and Safari

JavaScript is one of the most powerful dynamos behind the interactive web. This programming language lets web pages respond to your actions in real time. It’s why you can play videos, fill out forms, and engage in the myriad activities that make the World Wide Web so versatile and interactive.

How to Enable JavaScript in Google Chrome, Firefox, Microsoft Edge, and Safari

If JavaScript is turned off in your browser, you’re not just missing out on flashy animations or convenient auto-fill forms; you’re opting out of the full, rich functionality modern web developers work so hard to create.

How to Enable JavaScript

Each web browser will be slightly different regarding how to enable JavaScript. However, there are many common threads that will be similar no matter which browser you use.

Google Chrome

If Google Chrome is your default browser, its important that you enable JavaScript on it for the best browsing experience. 

  1. Click the Menu icon in Chrome.
  2. Select Settings, then go to Privacy and Security.
    Selecting Privacy and security from the sidebar in Google Chrome Settings
  3. Find Site Settings.
    Choosing Site settings from the Google Chrome Settings
  4. Scroll down and click on JavaScript, then click Sites can use JavaScript to enable.
    Clicking Sites can use JavaScript from the JavaScript settings in Google Chrome

Mozilla Firefox

Enabling JavaScript support in Firefox is also easy. 

  1. Input about:config in the Firefox address bar.
    Typing about:config into the search bar in Mozilla Firefox
  2. Click Accept the Risk
    Clicking the Accept the Risk and Continue button in Mozilla Firefox
  3. The search for javascript.enabled.
  4. Toggle the setting to true to enable JavaScript.
    Clicking the toggle button for the javascript.enabled setting in Mozilla Firefox

Remember that incognito tabs in Firefox have JavaScript enabled by default.

Microsoft Edge

JavaScript is enabled by default in Microsoft Edge. You can still verify this by following the below steps.

  1. Click on the Menu icon in Edge and go to Settings.
    Selecting Settings from the menu in Microsoft Edge
  2. Select Cookies and site permissions and JavaScript.
    Choosing JavaScript from the menu in the Microsoft Edge Settings
  3. Switch the toggle to On.
    Toggling the Allowed option in the Microsoft Edge JavaScript settings menu

While JavaScript can enhance a webpage, it can also be the cause of its unresponsiveness. 

Safari (macOS)

Enabling JavaScript in Safari on macOS requires jumping into its Preferences menu. 

  1. Open Safari on your Mac, and click Safari in the menu.
    Clicking Safari in the menu bar on MacOS
  2. Choose Preferences and then Security.
    Clicking the Security tab in the Safari Settings window
  3. Check the Enable JavaScript box.
    Checking the Enable JavaScript box in Safari Settings

Safari (iOS/iPadOS)

  1. Go to Settings on your iPhone or iPad and scroll down to Safari.
  2. Tap Advanced.
    Hitting Advanced in the Safari menu in iOS Settings
  3. Toggle JavaScript to On in this menu.
    Toggling the JavaScript option in the Advanced Settings in iOS


Opera’s JavaScript settings are tucked under Privacy & security section. 

  1. Click the Opera menu and select Settings.
    Clicking Go to full browser settings in the Opera menu
  2. Pick Privacy and security and go to Site Settings.
    Selecting Privacy & security from the sidebar in the Opera Settings menu
    Choosing Site settings from the Opera Privacy and security menu
  3. Click JavaScript and choose Sites can use JavaSript.
    Selecting JavaScript from the Opera Content Settings

Enable the True Internet

Enabling JavaScript is easy on every web browser and unlocks the web’s real potential. It’s a tiny change with a significant impact: enjoying the web’s full interactive features. So don’t keep it off, even if there are some security concerns. Just stay vigilant and use it in places you trust.

You might also want to learn how to block a website on Chrome for additional security.


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