Title: Error: Uncaught ReferenceError: FireBox is not defined
Last modified: April 9, 2024

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# Error: Uncaught ReferenceError: FireBox is not defined

 *  Resolved [ciucaadrian11](https://wordpress.org/support/users/ciucaadrian11/)
 * (@ciucaadrian11)
 * [2 years, 2 months ago](https://wordpress.org/support/topic/error-uncaught-referenceerror-firebox-is-not-defined/)
 * Hello Dear Dev FireBox,
 * I have the follwing error in the console related to FireBox plugin on my website
   epedia.ro:
 * Error: Uncaught ReferenceError: FireBox is not defined
   at (index):5:17at (index):
   19:16
 * Could you please help me in order to fixt it?
 * Thank you!
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-uncaught-referenceerror-firebox-is-not-defined%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [Stergos Zamagias](https://wordpress.org/support/users/stergosz/)
 * (@stergosz)
 * [2 years, 2 months ago](https://wordpress.org/support/topic/error-uncaught-referenceerror-firebox-is-not-defined/#post-17561338)
 * Hello [@ciucaadrian11](https://wordpress.org/support/users/ciucaadrian11/),
   I
   suspect that the culprit is the “defer” attribute in the LiteSpeedCache minified
   JS file that’s being loaded. This is because you have “Opening Sound” enabled
   which adds some extra Javascript that requires FireBox to be available instantly
   when the page loads.
 * Either remove the “defer” attribute from the bundle JS file or exclude FireBox
   from LiteSpeedCache JS settings.
 * Regards,
   Stergos
 *  Thread Starter [ciucaadrian11](https://wordpress.org/support/users/ciucaadrian11/)
 * (@ciucaadrian11)
 * [2 years, 1 month ago](https://wordpress.org/support/topic/error-uncaught-referenceerror-firebox-is-not-defined/#post-17562081)
 * Hello,
 * You are right. The issue was from “defer”. I have solved it.
 * Thank you for your support!
 *  Plugin Contributor [Stergos Zamagias](https://wordpress.org/support/users/stergosz/)
 * (@stergosz)
 * [2 years, 1 month ago](https://wordpress.org/support/topic/error-uncaught-referenceerror-firebox-is-not-defined/#post-17562092)
 * You’re welcome!

Viewing 3 replies - 1 through 3 (of 3 total)

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## Tags

 * [Uncaught ReferenceError](https://wordpress.org/support/topic-tag/uncaught-referenceerror/)

 * 3 replies
 * 2 participants
 * Last reply from: [Stergos Zamagias](https://wordpress.org/support/users/stergosz/)
 * Last activity: [2 years, 1 month ago](https://wordpress.org/support/topic/error-uncaught-referenceerror-firebox-is-not-defined/#post-17562092)
 * Status: resolved