In Firefox, console.log is not showing anything

I'm trying a simple console.log function in Firefox:

console.log("Hello, World!");

You may try it on: http://jsfiddle.net/EkZjK/

You may also try the full code in a stand-alone HTML file:

<html>
    <head>
        <meta content="text/html;charset=utf-8" http-equiv="Content-Type">
        <script type="text/javascript">
            console.log("Hello World !");
        </script>
    </head>
</html>

I get console logs in Chrome. But in Firefox I cannot see the logs.

I tried the Firebug console and Ctrl + Shift + J. Both don't show the log message in Firefox.

PS: I restarted Firefox, restarted Windows, tried on another machine, deleted the Firefox profile and created another one, and reinstalled Firefox. But the problem still exists.

How can I solve this?

Solution 1:

For some previous versions of Firefox

I had the same problem with a different root cause.

Hit Ctrl + Shift + K to open the full console. In the second row from the top there are tabs - Net, CSS, JS, Security, Logging, and Server. Hit the triangle to the right of "Logging" to open the dropdown and make sure that at least "log" is on.

Enter image description here

Solution 2:

Reinstalling the Firebug plugin solved the issue. Now it appears in the Firebug console (not in Ctrl + Shift + J).

Solution 3:

For Firefox 77.0.1 and Ubuntu 18.04 (Bionic Beaver) LTS (Bionic Beaver):

I had the same problem.

Open the Firefox console - Ctrl + Shift + J.

In the browser console, click on the top right settings icon. In the dropdown, click on Show Content Messages.

Then console.log messages will start showing up in the console.

In Firefox, console.log is not showing anything

Solution 1:

For some previous versions of Firefox

Solution 2:

Solution 3:

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