Error "TypeError: components.classes['@ [cid] is undefined" when opening of Firefox - every time that it is open!
Since the installation of Firefox 4, I get this error message "type: components.classes['@ [cid] is undefined" whenever Firefox is open and trying to access some Web sites. Very aggravating!
This indicates that you are using an add-on that is not compatible with Firefox 4. To find out how to solve this to find out what is causing the problem, see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
Tags: Firefox
Similar Questions
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Since the installation of the latest version of Firefox, this message "TypeError: components.classes['@ [cid] is undefined" appears in a box when should open a new window. In addition, what you see in the Preview Print print, is not which prints.
Recovering important data over an old profile
https://support.Mozilla.com/en-us/KB/recovering%20important%20data%20from%20an%20old%20Profile
Check and tell if its working.
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What I can do about it:
After the upgrade to firefox 6, I get this error.
When I click to open Firefox, a box opens with the following error message:
JAVASCRIPT application
TypeError: Components.classes['@ [cid] is undefined?
When I click close in the box, then Firefox start. I just want to really get fixed error so that when I open firefox, I can't see this box.You need to understand what add-on is causing that error and disable it until the developer of this add-on fixes it. There may be an error on this issue in the Console error, accessible through the developer menu item Web or {Ctrl + Maj + J}.
See also this:
http://support.Mozilla.com/en-us/KB/troubleshooting+extensions+and+themes -
I finished to download Firefox for my Mac OS 4.o. X.
When I try to open a Web site, I get the message:
[JavaScript Application] cannot create the plugin object of mcafee: TypeError: components.classes['@ [cid] is undefined
If I click on the OK button, the site opens, but without the alert McAfee at the bottom of the window.
I had just downloaded 3.6.16 and got box suggesting version 4.0 download for better security, but that seems to be where the problem is!This indicates that an add-on that you use is not compatible, considering the other errors, maybe it's the McAfee add-in. To confirm that the module is originally, use the procedure in this link - https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
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After the upgrade to Firefox 6.0
After opening
a small error window opens with the message
TypeError: Components.classes['@ [cid] is undefinedThis problem may be caused by an extension that is not working properly.
Start Firefox in Firefox to solve the issues in Safe Mode to check if one of the extensions of the origin of the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > appearance/themes).
- Makes no changes on the start safe mode window.
- https://support.Mozilla.com/kb/safe+mode
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I just upgraded to FF 3.6 to 8 FF. Everytime I open 8 FF, I get this error dialog box:
[JavaScript application]
TypeError: Components.classes['@ [cid] is unidefined
I just did the upgrade, so have not used FF 8 enough yet to know if the error causes problems.
Thanks for your help.
This problem may be caused by an extension that is not working properly.
Start Firefox in Firefox to solve the issues in Safe Mode to check if one of the extensions or if hardware acceleration is the cause of the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > appearance/themes).
- Makes no changes on the start safe mode window.
- https://support.Mozilla.com/kb/safe+mode
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Firefox seems to operate normally despite the error message. How can I prevent the message from happening whenever I open Firefox? The message is important?
Probably caused by an incompatible extension.
http://support.Mozilla.com/en-us/KB/troubleshooting+extensions+and+themes
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Whenever I open Firefox, I had a small window to appear and reports following error "TypeError; Components.classes['@ ['softage.ru/Skype FeExtensions; 1] is undefined
Remove/disable Skype add-on
Uninstalling the modules
Cannot uninstall an add-on
Check and tell if its working.
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TypeError: Components.classes['@ [cid] is not defined. That's the message thast appears each time I start Firefox.
This problem may be caused by an extension that is not working properly.
Start Firefox in Firefox to solve the issues in Safe Mode to check if one of the extensions of the origin of the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > appearance/themes).
- Makes no changes on the start safe mode window.
- https://support.Mozilla.com/kb/safe+mode
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I update firefox from version 7 to version 8, now when I run firefox every time it itself open the Web "to start with firefox", in firefox options I select the "show a blank page" but his does not work. I use firefox on windows XP - SP2.
Try to restart Firefox, the time of a page (s) after the beginning of a new version should disappear. In fact this last time with 8.0 they did not come to the top for me.
If it works then raise Subject: config and insert the url of the page into the filter. Right-click on anything that appears and use "Reset".
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I started Firefox in Mode safe mode with no addons, extensions or themes active. And it still happens. I noticed Greasemonkey is installed but can find no way to remove it - but no scripts are installed in it.
I use AVG Antivirus and have read the web-protection component could cause this problem but have not read how to correct it. Any info would be greatly appreciated.
Occurs whenever I open Firefox for the first time and every time I open a new browser window. Coming as at any time a web page generates a popup window. Can't when I just open a new tab or link in a new tab.
Do a clean install (re)-:
- Download a new copy of Firefox and save the file to the desktop.
- Firefox 4.0.x: http://www.mozilla.com/en-US/firefox/all.html
- Uninstall your current version of Firefox and remove the Firefox program folder before installing this copy of the Firefox installer.
- Do not remove the data of a personal nature if you uninstall the current version.
- It is important to remove the Firefox program folder to delete all the files and make sure that there is no problem with the files that were the remains after uninstallation.
- It is perhaps not necessary to create a new profile, so first try if it works with your current profile, and if not then create a new profile.
Create a new profile as a test to see if your profile is the source of the problems.
See:There may be extensions and plugins installed by default in a new profile, so check that in "tools > Modules > Extensions & Plugins»
If this new profile works then you can transfer files from the old profile to the new profile (be careful not to copy corrupted files)See:
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This also happens when I open another tab, which implies an impression.
You can use, make a copy of the desktop Firefox shortcut and add a space and - safe-mode to the command line (target) in this copy of the shortcut properties.
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Components.classes['@ [id] is undefined
Hello
I create my own add-on for FF. In 21 FF, it works fine, but with 22 FF I get the error: TypeError: components.classes['@ [cid] is not defined. In fact, I joined my add-on with gecko sdk 22, so I have no idea why it dosent works in 22.Do you have any suggestions?
Hello Roman, for issues related to the development of the addon, please use forum addons of mozilla to https://forums.mozilla.org/addons/.
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Whenever I use f.f.. I get this error. [TypeError: Components.classes['@softage.ru/skype/SkypeFfExtension;1'] is undefined
Anyone find it and or know how to remove it?
Thanks a lot for your help and your support
Extension to remove/disable Skype
Uninstalling the modules
Check and tell if its working.
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[TypeError: Components.classes['@softage.ru/skype/SkypeFfExtension;1'] is undefined
This happens everytime I open FirefoxTurn it off until you can find an update for this add-on.
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