How to Turn On JavaScript

iPhone

1. 1
   Open your iPhone's Settings

   

   . It's a grey group of gears on the Home Screen.
2. 2
   Scroll down and tap Safari . This option is roughly halfway down the Settings page. There's a blue Safari icon on the left side of this option.
3. 3
   Scroll all the way down and tap Advanced . It's at the bottom of the screen.
4. 4
   Slide the white JavaScript

   

   switch right. It will turn green

   

   . Doing so enables JavaScript on your iPhone's Safari browser.

   Tip: You may need to close and re-open Safari in order for JavaScript to start working.
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Mac

1. 1
   Open Safari. It's a blue, compass-shaped app in the Dock.
2. 2
   Click Safari . This menu item is in the top-left corner of your Mac's screen.
3. 3
   Click Preferences . It's near the top of the Safari drop-down menu.
4. 4
   Click the Security tab. This option is in the middle of the Settings window.
5. 5
   Check the "Enable JavaScript" box. It's next to the "Web content:" heading. Doing so enables JavaScript in Safari, though you'll most likely need to refresh your browser before affected pages will work.

   Note: If there's a checkmark in this box, JavaScript is already enabled in Safari.
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1. 1
   Open Firefox. It's a blue globe with an orange fox on it. By default, Firefox enables JavaScript and prevents you from changing this setting, but some applications interfere with the JavaScript implementation.
2. 2
   Click ☰ . This option is in the top-right side of the Firefox window.
3. 3
   Click Add-ons . It's a puzzle piece-shaped icon in the drop-down menu.
4. 4
   Look for a JavaScript-blocking extension. Some of the more popular JavaScript-blocking extensions include "No-Script", "QuickJava", and "SettingSanity".
5. 5
   Disable any JavaScript-blocking extensions. Click the problem extension and then click Disable or Remove when prompted.

   Note: You'll have to restart Firefox for your changes to take place.
6. 6
   Enable JavaScript through the advanced user settings. If disabling the JavaScript-blocking extensions didn't fix your problem, you may need to enable JavaScript from within Firefox's hidden settings:

   • Enter about:config into the Firefox URL bar.
   • Click I accept the risk! .
   • Type javascript.enabled into the search bar below the URL bar.
   • Make sure the "Value" section of the javascript.enabled item says "False".
     • If it says "true", JavaScript is enabled. Delete and reinstall Firefox.
   • Double-click javascript.enabled .
   • Restart Firefox.
7. 7
   Reinstall Firefox . If all else fails, uninstall and reinstall Firefox to restore all of the default settings. Because JavaScript is a foundation of the Firefox browser, reinstalling should restore its functionality. ^[1]
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1. 1
   Open Start

   

   on Windows 10 Pro or higher. You can't enable or disable JavaScript in Microsoft Edge in Windows 10 Home or Starter editions.
2. 2
   Type edit group policy into Start. This will search your computer for the Edit Group Policy program.
3. 3
   Click Edit Group Policy . It should be at the top of the Start window.
4. 4
   Navigate to the "Microsoft Edge" folder. To do so:

   • Double-click User Configuration .
   • Double-click Administrative Templates .
   • Double-click Windows Components .
   • Double-click Microsoft Edge .
5. 5
   Double-click Allows you to run scripts, like JavaScript . Doing so opens a window with JavaScript options.
6. 6
   Click Enabled . This will enable JavaScript in your browser.

   Note: If Enabled already has a check next to it, JavaScript is enabled in Edge.
7. 7
   Click OK . It's at the bottom of the window. Doing so will save your settings and apply JavaScript to Edge, though you may need to restart the Edge browser before these changes show up.
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1. 1
   Open Internet Explorer. It resembles a blue "e" with a yellow band around it.
2. 2
   Click Settings ⚙️. This option is in the top-right corner of the Internet Explorer window.
3. 3
   Click Internet options . It's near the bottom of the drop-down menu.
4. 4
   Click the Security tab. This is near the top of the Internet Options window.
5. 5
   Click the Internet globe. It's in the window near the top of Internet Options.
6. 6
   Click Custom level . This option is in the "Security level for this zone" section near the bottom of the Internet Options window.
7. 7
   Scroll down to the "Scripting" section. It's near the bottom of the Settings window.
8. 8
   Check the "Enable" box below the "Active scripting" heading. This will turn on JavaScript for your browser.
9. 9
   Click OK . It's at the bottom of the window.
10. 10
    Click Apply , then click OK . Doing so saves your settings, though you may need to close and re-open Internet Explorer for JavaScript to load properly.
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