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.

Rohkem teavet

Installed Firefox 4 on my Mac; getting error messages upon start up and when opening photos (i.e. ebay)

  • 2 vastust
  • 5 on selline probleem
  • 1 view
  • Viimati vastas snwbrdingjr

more options

I updated to Firefox 4 and now continuously receive error messages. One example is when I'm in Ebay and click on a photo to enlarge I get the following error message.

(JavaScript Application) can't create mcafee plug-in object: TypeError: Components.classes(cid) is undefined

Another example is upon start up of Firefox I receive an error message but I can't make it out since its half hidden on my desktop but I have to click "ok" in order to open up Firefox.

I'm barely learning how to use this Mac (a task in its self), but now I have these error messages? Can I just go back to my older version of Firefox to make these error messages go away?

Thanks, JR.

I updated to Firefox 4 and now continuously receive error messages. One example is when I'm in Ebay and click on a photo to enlarge I get the following error message. (JavaScript Application) can't create mcafee plug-in object: TypeError: Components.classes(cid) is undefined Another example is upon start up of Firefox I receive an error message but I can't make it out since its half hidden on my desktop but I have to click "ok" in order to open up Firefox. I'm barely learning how to use this Mac (a task in its self), but now I have these error messages? Can I just go back to my older version of Firefox to make these error messages go away? Thanks, JR.

All Replies (2)

more options

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

  • Don't make any changes on the Safe mode start window.

See:

more options

Thank you very, very much. This was my very first time trying to solve a technical issue on my Mac... your advice worked great. I disabled all the add-on apps and it solved my issue. Don't know if I should have disabled all but it seemed to work... Thanks again for the advice.