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

After downloading 4.0 I get this message: JavaScript application can't create mcafee plug-in object: TypeError: components.classes[cid] is undefined

  • 3 ŋuɖoɖowo
  • 49 masɔmasɔ sia le wosi
  • 2 views
  • Nuɖoɖo mlɔetɔ mrbillshaw

more options

I finished downloading Firefox 4.o to my Mac OS.X. When I try to open a website I get the message: [JavaScript Application] can't create mcafee plug-in object: TypeError: Components.classes[cid] is undefined If I click the OK button, the site opens, but without the McAfee alert at the bottom of the window. I had just downloaded 3.6.16, and got box suggesting download version 4.0 for better security, but that seems to be where the problem is!

I finished downloading Firefox 4.o to my Mac OS.X. When I try to open a website I get the message: [JavaScript Application] can't create mcafee plug-in object: TypeError: Components.classes[cid] is undefined If I click the OK button, the site opens, but without the McAfee alert at the bottom of the window. I had just downloaded 3.6.16, and got box suggesting download version 4.0 for better security, but that seems to be where the problem is!

Ŋuɖoɖo si wotia

That indicates that an add-on you are using is not compatible, considering the other errors it is possibly the McAfee add-on. To confirm what add-on is causing this use the procedure in this link - https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

Xle ŋuɖoɖo sia le goya me 👍 1

All Replies (3)

more options

Ɖɔɖɔɖo si wotia

That indicates that an add-on you are using is not compatible, considering the other errors it is possibly the McAfee add-on. To confirm what add-on is causing this use the procedure in this link - https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

more options

I tried the troubleshooting+extensions solution, deleting the McAfee extension. Firefox is now up and running. Thank you!

more options

In my case it was Billeo - I got the error on an HP Laptop with Windows 7 64bit but not on an iMac with the same OS under VMware Fusion. May be some sort of hardware related problem.