Whenever I boot Firefox I get: JavaScript Application TypeError: components.classes['@ [cid] is not defined. What causes this and how to fix it?

Similar Questions

• When I launch Firefox, Iget the following message "TypeError: components.classes['@ [cid] is not defined.

  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.

  • https://support.Mozilla.com/kb/troubleshooting+extensions+and+themes

  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

• Firefox 4.0.1 giving "TypeError: components.classes['@ [cid] is not defined. How can I fix? Other posts about it did not solve my problem.

  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:

  • Basic troubleshooting: make a new profile

  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:

  • http://KB.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

• I get the error message "HTTP not found" and "SMTP." not found What is this and how can I fix it please?

  I get the error message "HTTP not found" and "SMTP." not found What is this and how can I fix it please?

  If you try to send or receive messages, you may receive an error message similar to the following error message, which indicates that your Post Office Protocol version 3 (POP3) or host SMTP Simple Mail Transfer Protocol () is not found:

  The host hostname is not found. Please check that you have entered the server name correctly. Account: AccountName, Server: servername, Protocol: POP3, Port: secure (SSL): no, error 11001, error 0x800CCC0D Socket number

  In addition, you cannot ping or establish a Telnet connection to the mail server.

   
  This problem may occur if you have the firewall from Zone Labs such as ZoneAla software...
  This problem may occur if you have firewall software from Zone Labs such as ZoneAlarm or ZoneAlarm Pro, installed on your computer. These programs may prevent communication with your e-mail server.

  RESOLUTION

  To resolve this problem, remove the software firewall from Zone Labs of your compu...
  To resolve this problem, remove the firewall from Zone Labs of computer software. To do this, see the program documentation or contact Zone Labs at the following of Zone Labs Web site for more information:

  http://www.zonelabs.com/services/support.htm (http://www.zonelabs.com/services/support.htm)

  MORE INFORMATION

  For more information about ZoneAlarm or to contact Zone Labs, see what follows...
  For more information about ZoneAlarm or to contact Zone Labs, see the following Web of Zone Labs Web site:

  http://www.zonelabs.com (http://www.zonelabs.com)

  For more information on how to resolve a similar error message when you use Microsoft Outlook on a computer that is configured as an ICS Internet (ICS) client, click on the number below to view the article in the Microsoft Knowledge Base:

  252322 (http://support.microsoft.com/kb/252322/EN-US/) OL2000: (CW) Error Message: The Server could not be found using ICS Connection

  For more information on how to solve an error similar to Microsoft Outlook Express and ZoneAlarm, click on the number below to view the article in the Microsoft Knowledge Base:

  274456 (http://support.microsoft.com/kb/274456/EN-US/) error finding POP3 or SMTP servers when you send or receive e-mail Messages

  The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

  Microsoft provides third-party contact information to help you find technical support. These details may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

  later ducdive

• Have updated to F.F.6, I always get this error evertime I use it. [Message: [Javascript Application] TypeError: Components.classes[@softage.ru/skype/SkypeFfExtension;1'] is undefined - HELP

  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

  • https://support.Mozilla.com/en-us/KB/uninstalling%20add-ons

  Check and tell if its working.

• AFTER DOWNLOAD FIREFOX 6 I NOW GET THE MESSAGE ' TypeError: components.classes['@ [cid] is undefined "whenever I OPEN FIREFOX - WHY?

  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

• My fonts suddenly changed in Firefox, but not in other browsers. I solved all the duplicated fonts, cleared cache, and the settings in preferences are still on what they should be. What caused this and how can I solve this problem?

  Policies changed in the Firefox browser - not in any other browser.

  You can write a check for corrupted fonts and duplicate and other police issues:

  • http://www.thexlab.com/faqs/multipleappsquit.html - help book 2.0 fonts: looking for damaged fonts
  • http://www.CreativeTechs.com/IQ/garbled_fonts_troubleshooting_guide.html

  You can do a test of fonts to see if you can identify the corrupted fonts.

  • http://BrowserSpy.dk/fonts-Flash.php?detail=1
  • FontInfo: https://addons.mozilla.org/firefox/addon/fontinfo/

• When going online to get the message box with "xmlNode.getElementsByTagName ("id") [0] .firstChildisNull - > 1.» What causes this and how can I fix?

  Message is inside a box with cancel box and blue title red 'X '.
  in the blue header is [JavaScriptApplication]

  As it happens not in Mode safe, it is probably caused by an extension. See http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes for the procedure on how to track down the offending

• What I can do about it: after upgrading to firefox 6, I get this error. TypeError: Components.classes['@ [cid] is undefined?

  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

• After downloading 4.0 I get this message: application JavaScript is unable to create the plugin object of mcafee: TypeError: components.classes['@ [cid] is undefined

  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

• Since the installation of Firefox 4, I get this message "TypeError: components.classes['@ [cid] is undefined" when a window should open. Also saw print and print no longer work correctly.

  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.

• What is this and how can I get rid of it: akhzpnwvld

  When I open Internet Explorer or any program depends on this appears on my desktop and the Documents and Settings folder and the Local Settings/Temp folder. It interferes with my research on the internet Google. What is this and how do I get rid of him? I rebooted my backup IE but it still appears. My McAfee scan nothing of reports on this subject.

  Hi John,.

  1. don't you make changes on your computer before this problem?

  2. you have the latest updates installed McAfee?

  It seems that the computer is infected with virus or malware.

  (a) I recommend you run a virus scan online from the link given below and check if the problem persists.

  Microsoft safety scanner

  Also, make sure that you have the latest update of the software antivirus installed on your computer, so that it works correctly.

  (b) you can also download & run Microsoft Security Essentials on your computer.

  Hope the helps of information.
  Please post back and we do know.

• get the error code 66A message, what to do and how to fix it?

  get the error code 66A message, what to do and how to fix it?

  Hello

  see if that helps to fix:

  How to reset the Windows Update components?

  There is also an automatic 'fix - it' here

  http://support.Microsoft.com/kb/971058

  Also, try to put the KB numbers in the search on the link below and then manually download the

  http://www.Microsoft.com/downloads/en/default.aspx

  or repost in the correct windows update forum

  http://answers.Microsoft.com/en-us/Windows/Forum/windows_vista-windows_update?page=1&tab=all

• I just started to use a new version of Illustrator and the text I've created has a pink box behind, seems to be on the depth of the normal linespace, it is not visible in outline view, only in the preview. What is this and how do I get rid of him?

  I just started to use a new version of Illustrator and the text I've created has a pink box behind, seems to be on the depth of the normal linespace, it is not visible in outline view, only in the preview. What is this and how do I get rid of him?

  A pink box indicates that the font is not installed. This is a file that you have worked before, or is this a new file?

• 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