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JavaScript

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  • 2 have this problem
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  • Last reply by cor-el

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Hello. How do I have JavaScript? And how do I enable JavaScript on Firefox browser?

Hello. How do I have JavaScript? And how do I enable JavaScript on Firefox browser?

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JavaScript is a built-in component and enabled by default. If a website complains about JavaScript not working then you likely have some content blocking extension active or possibly Firefox Enhanced Tracking Protection is blocking content.

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin), always make sure such extensions do not block content.

You can check for issues with Enhanced Tracking Protection. Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.

  • click the shield icon for more detail and possibly disable the protection

You can check the Web Console for relevant-looking messages like blocked content.

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