How to Turn on Javascript in Mozilla Firefox

By Grant D. McKenzie

Mozilla Firefox is a popular alternative to Microsoft Internet Explorer for internet browsing. Firefox is an open source program and is, therefore, easier to customize. It is still compatible with modern web pages, including those running JavaScript applications. The security features on Mozilla Firefox are generally easier to operate, and since JavaScript can be used maliciously, you can run into situations where disabling this capability becomes necessary. In Firefox, enabling and disabling JavaScript has been made very easy.

Things You'll Need

  • Computer with Mozilla Firefox and JavaScript installed

Step 1

Open Mozilla Firefox and click "Tools" on the menu bar.

Step 2

Click "Options..." to bring up the "Options" window and then click the "Content" tab.

Step 3

Activate the checkbox next to "Enable JavaScript."

Step 4

You can also customize what JavaScript is allowed to do. Click the "Advanced..." button to the right of "Enable JavaScript" and activate or deactivate the checkboxes to suit your individual needs. Click "OK."

Step 5

Click "OK" at the bottom of the "Options" window. JavaScript is now enabled.