We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

TypeError: self is undefined with the new Firefox 16.0.1

more options

I am using a Milonic DHTML Menu - JavaScript Website Navigation System. It doesnt work with the new Firefox 16.0.1. The error is with Firebug : TypeError: self is undefined . Self is referred to : self.scrollY; self.scrollX;

I am using a Milonic DHTML Menu - JavaScript Website Navigation System. It doesnt work with the new Firefox 16.0.1. The error is with Firebug : TypeError: self is undefined . Self is referred to : self.scrollY; self.scrollX;

Gewysig op deur elaccca

Gekose oplossing

Hi elaccca,

Quite old version of Milonic JavaScript code is used in my appliction and I got the same problem. I have changed 'self' to 'this' in the code string '_sT=self.scrollY;_sL=self.scrollX;' and this solved the issue in my website.

Lees dié antwoord in konteks 👍 3

All Replies (2)

more options

Gekose oplossing

Hi elaccca,

Quite old version of Milonic JavaScript code is used in my appliction and I got the same problem. I have changed 'self' to 'this' in the code string '_sT=self.scrollY;_sL=self.scrollX;' and this solved the issue in my website.

more options

Thanks zuvyte12. I also got the same problem and resolved as per your change. I think if we use the latest version of Milonic javascript, problem should not persist. Error was in "mmenudom.js".