How to Enable Disable JavaScript in Mozilla Firefox

Each browser enabled Javascript by default. Mozilla Firefox has no exception. For development purpose some times developers need to temporarily allow or disallow Javascript option. Here in this tutorial i will show you “How one can Enable or Disable JavaScript In Mozilla Firefox for Windows”. But for general purpose uses I strongly recommend to keep Javascript functionality ON, otherwise you will miss client side functionality for all sites. To enable or disable Javascript of Mozilla Firefox Browser, please follow below steps:

1. Go to Address Bar, type “about:config” and press Enter:


2. Click “I’ll be careful, I promise” for the warning message:


3. In the search box, search for “javascript”:


4. Double click on the row to toggle Enable/Disable or right click on the row and select “Toggle” to Enable/Disable


At a Glance:

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