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    If your main.js file isn’t running in Firefox, it’s likely because JavaScript is disabled in the browser. Since main.js is a JavaScript file, enabling JavaScript will allow it to execute properly.

    Steps to Enable JavaScript in Firefox

    1. Open Firefox Settings via about:config

    • Launch Mozilla Firefox on your computer.

    • In the address bar, type:

    about:config
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    2. Accept the Warning

    • You’ll see a "Proceed with Caution" message.

    • Click "Accept the Risk and Continue" to proceed.

    3. Search for JavaScript Setting

    • In the search box at the top, type:

    javascript.enabled
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    4. Enable JavaScript

    • If the value is set to false, click the toggle button to change it to true.

    • This means JavaScript is now enabled in Firefox.

    5. Reload Your Page

    • Refresh the webpage or re-run your local HTML file that references main.js.

    • Your script should now execute as expected.

    Testing if main.js Works

    You can verify by adding a simple log inside main.js:

    console.log("main.js is running!");
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  2. How-To Geek
    https://www.howtogeek.com › how-to-enable-javascript-in-mozilla-firefox

    How to Enable JavaScript in Mozilla Firefox

    Enable and Disable JavaScript in Firefox

    To turn on JavaScript in Firefox, first, launch the Firefox app on your computer.
    In Firefox's address bar at the top, type the following and press Enter:
    You will see a "Proceed with Caution" notice. Here, click the "Accept the Risk an…

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  4. Mozilla Support
    https://support.mozilla.org › en-US › questions

    how do i enable javascript if there is no option to enable javascript

    Aug 8, 2013 · In the address bar, type "about:config" (with no quotes), and press Enter. In the search bar, search for "javascript.enabled" (with no quotes). Right click the result named "javascript.enabled" and …

  5. WikiHow
    https://www.wikihow.com › Enable-JavaScript-in-Mozilla-Fire…

    3 Ways to Enable JavaScript in Mozilla Firefox - wikiHow

    Mar 31, 2023 · Although JavaScript is turned on by default in Mozilla Firefox, you can disable it for speed, bandwidth, and safety concerns in your configuration settings. …

  6. TechBloat
    https://www.techbloat.com › how-to-enable-javascript-on-firefox.html

    How to Enable Javascript on Firefox - TechBloat

    Jan 21, 2025 · In this article, we will explore how to enable JavaScript on Firefox, delve into the implications of enabling or disabling it, and provide insights on debugging if you encounter issues …

  7. markaicode.com
    https://markaicode.com › enable-javascript-browser-guide

    How to Enable JavaScript in Any Browser: Complete Guide

    4 days ago · Learn how to enable JavaScript in Chrome, Firefox, Safari, and Edge with step-by-step instructions for better web browsing performance.

  8. Solve Your Tech
    https://www.solveyourtech.com

    How to Enable JavaScript in Firefox Windows 11: A Step-by-Step Guide

    Mar 19, 2025 · Learn how to enable JavaScript in Firefox on Windows 11 with this concise guide. Follow our easy steps to enhance your browsing experience today!

  9. The Tech Edvocate
    https://www.thetechedvocate.org

    4 Ways to Turn On Javascript in Mozilla Firefox

    Ensuring that JavaScript is enabled in your Mozilla Firefox browser is an essential step for a better web browsing experience. Enjoy interactive content and rich website interactions by following any of these …

  10. Technipages
    https://www.technipages.com › firefox-enable-disable-

    Firefox: Enable/Disable Javascript - Technipages

    How to enable or disable the JavaScript feature in all versions of the Mozilla Firefox web browser.

  11. Activate JavaScript
    https://activatejavascript.org › en › instructions › firefox

    How to activate & enable JavaScript in Firefox

    Find the javascript.enabled row under the Preference Name heading. Click the toggle button in the right-hand column of the javascript.enabled row to toggle the value from "False" to "True".

  12. Computer Hope
    https://www.computerhope.com › issues

    How to Enable or Disable JavaScript in a Browser

    Jun 1, 2025 · To enable or disable JavaScript in Firefox, follow these steps. Open Firefox. In the address bar, type about:config and press Enter. Click the Accept the …

  13. Deep dive into Enable JavaScript Mozilla Firefox

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