Firefox - Javascript Enable or Disable Method (about:config)

You may have a question how to enable or disable firefox javascript by browser settings or adding new addons. For working purpose if you need to turn off firefox javascript, you can do it easily. There are lots of addons available to turn on / off javascript function. You can install and use it in shortcut.

Disable/Enable javascript:

1. Open Mozilla Firefox.

2. Type "about:config" in the address bar and press enter.

3. Click "I'll be careful, I promise" button.

4. Write "Javascript" in search form below address bar.

5. Double click on "Javascript.enable" and set the value to "false"

If you want to enable javascript again follow the above steps.