This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

I'm recieving "Error: TypeError: boxOverlay_AVG is null. What's happening?

  • 2 fhreagra
  • 8 leis an bhfadhb seo
  • 2 views
  • Freagra is déanaí ó flipflops

more options

Each time I log into the internet (Google) a [JavaScript Application] box pops us indicating "Error: TypeError: boxOverlay_AVG is null".

Not sure what's going on?

I do notice that I am unable to print certain pages from internet sites.

Each time I log into the internet (Google) a [JavaScript Application] box pops us indicating "Error: TypeError: boxOverlay_AVG is null". Not sure what's going on? I do notice that I am unable to print certain pages from internet sites.

Réiteach roghnaithe

Since the messages references AVG, you could try disabling your AVG toolbar extension and see whether that eliminates the message. You can do that here:

orange Firefox button (or Tools menu) > Add-ons > Extensions category

If the message goes away after restarting Firefox, this may indicate that your AVG software needs an update.

If the message persists, we would need to track down some other cause.


By the way, Firefox 21 is now available. Not sure it will make any difference to the other issues, but you can update using:

Help > About Firefox > "Check for Updates" button


Could you describe the printing issue in more detail? If you recall the pages that have problems, it could be helpful to get those URLs, assuming an account isn't needed to view them.

Read this answer in context 👍 5

All Replies (2)

more options

Réiteach Roghnaithe

Since the messages references AVG, you could try disabling your AVG toolbar extension and see whether that eliminates the message. You can do that here:

orange Firefox button (or Tools menu) > Add-ons > Extensions category

If the message goes away after restarting Firefox, this may indicate that your AVG software needs an update.

If the message persists, we would need to track down some other cause.


By the way, Firefox 21 is now available. Not sure it will make any difference to the other issues, but you can update using:

Help > About Firefox > "Check for Updates" button


Could you describe the printing issue in more detail? If you recall the pages that have problems, it could be helpful to get those URLs, assuming an account isn't needed to view them.

more options

Thank you!! This worked.

Take care  :)