How to Enable or Disable JavaScript in Mozilla FireFox

In today's lesson, we will teach you how to enable or disable a JavaScript in Mozilla Firefox. Open Mozilla Firefox. Type about:config in the address line and press 'Enter'. Click on 'I accept the risk'. Type 'javascript.enable' in the search line. If it's on, the value will be 'True'. To disable JavaScript right-click on 'True' under 'Value' and set it to 'False'. To enable JavaScript right-click on the 'False' under 'Value' and set it to 'True'