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Enabling / Disabling Javascript on your web browsers

Javascript is a high-level, dynamic and interpreted run-time language that all major modern web browsers support without the need for plug-ins. The most common use of Javascript is to add client-side behaviour to web pages, due to which the browser can respond to user actions quickly, making the application more responsive. However, somethime due to security concerns, users disable javascript on their browsers. Read below to know more on how you can enable / disable javascript on your choice of web browser:

Internet Explorer 6 and later

  1. Open the Tools menu.
  2. Select Internet Options to open the Settings dialog box.
  3. Click on the Security tab.
  4. Click on the Internet symbol (a globe).
  5. Click on the Custom Level... button, to open the Security Settings dialog box.
  6. In the Settings list, scroll down to Scripting.
  7. Under Active Scripting, check on the radio button next to Enable to enable javascript in your browser. (Check "Disable" if you want to disable javascript.)
    Enabling javascript in Internet Explorer 6 and above
  8. click OK to close the Security Settings dialog box.
  9. Click Yes in the Warning! message box.
  10. Click OK to close the Internet Options dialog box.

Older versions of Mozilla Firefox

  1. Open the Tools menu (Windows) or the Firefox menu (OS X).
  2. Select Options... (Windows) or Preferences... (OS X), to open the Settings dialog box.
  3. In the row of colored icons on top, click on Content
  4. Check the box next to Enable Javascript to enable javascript in your browser. (Uncheck the box if you want to disable javascript.)
    Enabling Javascript in Firefox.
  5. Click OK to close the Settings dialog box.

Mozilla Firefox Version 52.

  1. Firefox took away the ability to modify javascript settings from the usual settings dialog box in the current version 52. There is now a different way to achieve this.
  2. Type about:config in the address bar of your browser. This will bring up a warning message about your warranty.
  3. Click on I accept the risk! button. this will bring up a list of preferences and how they are set.
  4. On the search bar, type javascript.enabled. This will bring up the javascript.enabled preference.
  5. By default, the value field on this preference should say true This means javascript is enabled on your browser. If it says false, right click on the preference line and click on Toggle. This will change the value to true, thus enabling javascript.
    Enabling javascript on Firefox 52
  6. Close the tab when done.

Google Chrome

  1. Click on the 3 dot image Chrome 3-dot icon at the top right corner of the browser window.
  2. Click on Settings to open the Settings window.
  3. Click on the Show Advanced Settings... link at the bottom of the page. This expands the page to bring up more options.
  4. Click on the Content Settings... button under Privacy, to open Content Settings dialog box.
  5. Under Javascript, check the radio button next to Allow all sites to run javascript (recommended). to enable javascript on your browser. (To disable javascript, check the other radio button option.)
    Enabling Javascript on Google Chrome
  6. Click the Done button to close the Content Settings dialog box.

Safari

  1. Open the Safari menu (OS X) or the Edit menu (Windows). (If the menu is not visible, press the Alt key.)
  2. Select Preferences...
  3. In the Preferences dialog box, clcik the Security icon (a padlock).
    Enabling javascript on Safari
  4. In the Web Content section, check the box next to Enable Javascript to enable javascript on your browser. (Unchekc the box to disable javascript.)
  5. Close the preferences dialog box by clicking on the red button at the top left (OS X) or by clicking the X icon at the top right (Windows).

Javascript creates a rich user experience and that is why browsers enable it by default or recommend enabling it.