JavaScript is one of the most popular and most-used programming languages in the world. Developers can use the JavaScript language in the webpage for dynamic interactions and functionalities. If you want to run your own code on a webpage, you have to enable JavaScript on your Firefox browser manually.
How to Enable Javascript on Firefox [Windows]
(1) Launch the Firefox browser on your Windows PC.
(2) Type about:config in the search bar and hit the Enter button.
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(3) Tick the box of Warn me when I attempt to access these preferences and click Accept the Risk and Continue.
(4) Click the Search preference name field and search for javascript.enabled.
(5) Tap the Double-side Arrow icon to enable the JavaScript.
(6)If the box displays you as True, you have successfully enabled JavaScript on your Firefox browser.
Enabling JavaScript language is completely different from changing the language on Firefox.
Javascript on Firefox [Windows 8]
(1) Launch the Firefox browser on your PC.
(2) Click the drop-down menu.
(3) Locate and select the Options tab.
(4) Select Content on the Options tab.
(5) On the next page, enable the JavaScript option.
(6) Finally, click OK and restart your browser to open your Firefox in JavaScript mode.
Javascript on Firefox [Windows 7]
(1) Open the Firefox browser on your PC.
(2) Click on the address bar and type about:config.
(3) Select the option Choose to accept the risk and click Continue.
(4) Now, you will be directed to the Settings page.
(5) Click the search box on the Settings page and search javascript.
(6) Now, toggle the button to true on javascript.enabled to enable it.
How to Enable Javascript on Firefox From Mac
(1) Launch the Firefox browser on your Mac.
(2) Click Firefox at the top and select Preferences.
(3) Click on the Content tab and check the box of JavaScript and enable Java.
(4) Close the window and refresh the page to enable the JavaScript on your Firefox from your Mac.
How to Disable JavaScript
(1) Open the Firebox browser.
(2) Search for about:config.
(3) Click on Choose to accept risk.
(4) Search for javascript.enabled on the Search preference name field.
(5) Toggle the button to false on the javascript.enabled to disable the JavaScript mode.
Firefox Addons to Manage JavaScript
Other than the built-in options, you can enable or disable the JavaScript on Mozilla Firefox using the addons. Among the addons available in the Firefox store, NoScript Security Suite and QuickJava offers the easiest way. Unfortunately, the QuickJava extension has been removed from the Firefox store.
(1) From the Firefox store, install the NoScript Security Suite addon.
(2) Click the extension to open it.
(3) The extension will show you several options.
(4) By default, it will enable JavaScript for all the websites.
(5) Click the Restrict option to disable the JavaScript. These changes will affect only the current website, not all the websites.
(6) Click the Settings icon to get advanced customized options.
FAQs
Most modern browsers support JavaScript. The outdated version of the Firefox browser may not support JavaScript mode. Update Firefox to get the JavaSript feature.
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