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Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

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New User

Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

Javascript Application pop up error on website load after page is loaded saying : TypeError: Components.classes[cid] is undefined I run an HP Pavilion dv5 on Windows Vista

This happened

Every time Firefox opened

== I first started using Firefox

1 ACCEPTED SOLUTION

Accepted Solutions
Site Moderator

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes). See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears. You can use "Disable all add-ons" on the Troubleshoot Firefox issues using Safe Mode start window to disable all extensions. You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

18 REPLIES
Site Moderator

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes). See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears. You can use "Disable all add-ons" on the Troubleshoot Firefox issues using Safe Mode start window to disable all extensions. You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

you rock dude thank god this worked I was getting to the point of yelling at my computer because of the pop ups were getting worse! you rock thanks for helping me! :^D

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

So...what were the offending add-ons?

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

This really does work. I select Disable all add0ons, then I will start enabling one by one until I find the issue. I will try to remember to add a comment once I find it!

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

It was some older add-ons that caused this problem. Once you select disable add-ons, you will see which are not supported by 4.0 Beta 2. Just remove and restart. Then enable each one one at time and restart.

Hope this helps!

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

I got it to go away by (as someone already said) disabling all the add-ons and then enabling them one by one. The ones that were the problems were called 'Context Management Controller 2.8.0.4360' and 'Textual Media Service 2.8.0.4580'. I hope this helps.

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

This fixed my issue, disabled all add-ons. Turned out to be the telephony toolbar that our new voip system installed.

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

I found that the culprit for me was Zonealarm. FF Works like a charm with this disabled.

Michael Nunneley Post Falls ID

New User

Re: Javascript pop errors stating: TypeError: Components.classes[cid] is undefined

I found that the culprit was eSnips downloader toolbar.