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.

why "TypeError: d.createdElement is not a function"

  • 2 fhreagra
  • 2 leis an bhfadhb seo
  • 1 view
  • Freagra is déanaí ó sansarito

more options

since I have created App Tabs every time I open Firefox this window appears "TypeError: d.createdElement is not a function" and after clicking OK a new window says "Prevent this page from creating additional dialogues" with a tick box that doesn't make much sense to me. what can I do not to see those windows.

since I have created App Tabs every time I open Firefox this window appears "TypeError: d.createdElement is not a function" and after clicking OK a new window says "Prevent this page from creating additional dialogues" with a tick box that doesn't make much sense to me. what can I do not to see those windows.

All Replies (2)

more options

This issue can be caused by an extension that isn't working properly.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

more options

I decided to cancel a couple of last App Tabs and the windows disappeared. So, I presume it has to do with those websites. I have five App Tabs active insteas of seven. Waiting until I load a few more (different ones) and see how it goes. Thanks a lot anyway. Cheers. Claudio