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.

Similar Questions

• 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

• 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

• 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

• 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

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

  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.

  • http://KB.mozillazine.org/Safe_Mode

• Since the installation of Firefox, can no longer send the docs or photos in e-mail. (Talktalk e.mail provider)

  Can no longer send any photo or scanned docs (even in compressed form) via my account of talktalk. If I go via Windows Mail, I have no problem - this seems only occurred since the installation of Firefox - y at - it a setting I need to change? Has anyone else encountered this problem.

  -> Cache and delete Cookies

  • https://support.Mozilla.com/en-us/KB/template:clearCookiesCache

  -> Clear Cache network

  -> Reload webpages and ignore the cache.

  • Hold SHIFT and click reload.
  • Press 'Ctrl + F5' or 'Ctrl + Shift + R' (Windows, Linux)
  • Press 'Cmd + Shift + R' (MAC)

  -> Troubleshooting extensions, themes and problems of hardware acceleration to resolve common Firefox problems

  Check and tell if its working.

• Since the installation of Firefox 8, when I type anything in the address bar and then press "enter" or click on the arrow for "go to the address in the address bar", nothing happens!

  Since the installation of Firefox 8, when I type anything in the address bar and then press "enter" or click on the arrow for "go to the address in the address bar", nothing happens! Similarly if a place is indicated by the location bar AutoComplete feature. I hit "enter" or click the "go to" and nothing happens. " Keyboard shortcuts to "complete the .com, .net, etc. addresses" doesn't work or the other. The address bar has worked well for entering web addresses before Firefox 8. Help, please.

  Try Firefox SafeMode to see how it works there.
  
  A way of solving problems, which disables most of the modules.
  
  (If you use it, switch to the default theme).

  • You can open the Firefox 4, 5, 6, 7 SafeMode pressing the SHIFT key when you use the desktop Firefox or shortcut in the start menu.
  • Or use the Help menu option, click restart with the disabled... modules while Firefox is running.

  Do not choose anything at the moment, just use 'continue in safe mode.

  To exit safe mode of Firefox, simply close Firefox and wait a few seconds before using the shortcut of Firefox (without the Shift key) to open it again.

  If it's good in Firefox Safe mode, your problem is probably caused by an extension, and you need to understand that one.
  
  http://support.Mozilla.com/en-us/KB/troubleshooting+extensions+and+themes

  When find you what is causing that, please let us know. It might help others who have this problem.

• I recently installed Adobe Flash Player ActiveX 11 - 11.4.402.265 and when I open my Mozilla Firefox browser I get this message flashing on my screen: '

  I recently installed Adobe Flash Player ActiveX 11 - 11.4.402.265 and when I open my Mozilla Firefox browser I get this message flashing on my screen: "Adobe Flash Player 11.4 r402 has stopped working" and then "Windows is checking for a solution"

  It flashes several times then stops usually but not always.

  It happens every time I try to open a new page.

  I solved this problem by uninstalling Adobe Flash Player 11 and install Adobe Flash Player 10.3. However, now my IE browser again wants me to install Adobe Flash Player 11. Although I do not often use my IE browser, I DON'T have to use sometimes. Is there a Firefox 15.0 update to fix this problem?

  First of all, the Flash of the IE is totally different than the flash used in Firefox. You can update one without affecting the other.

  Now, there is a problem right now with Flash 11.3 and 11.4 in Firefox. Downgraded to 10.3 is an acceptable solution for the moment. Adobe publishes the updates (slowly) that solve the problems, but it is not a matter of time before they are all fixed.

  Adobe Flash plugin has crashed - avoid that it happen

  11.3 Flash does not load video in Firefox

  We'll find other information on more technical issues under these links:

  http://forums.Adobe.com/thread/1018071?TSTART=0

  http://blogs.Adobe.com/asset/2012/06/inside-Flash-Player-protected-mode-for-Firefox.html

  Please tell us if it helped!

• I purchased a download version of Lightroom 6 from Amazon and when I write the number of license keys I get this message "we are unable to validate this serial number for adobe Lightroom. Please contact Customer Support. "

  I purchased a download version of Lightroom 6 from Amazon and when I write the number of license keys I get this message "we are unable to validate this serial number for adobe Lightroom. Please contact Customer Support. "

  Contact adobe support by clicking on this link then "still need help" as soon as it appears, https://helpx.adobe.com/contact.html

• In the Muse is it normal to get this message? "Do you think the application 'Adobe Muse CC 2014.app' to accept incoming network connections?

  In the Muse is it normal to get this message? "Do you think the application 'Adobe Muse CC 2014.app' to accept incoming network connections? Clicking Deny can limit the behavior of the application. This setting can be changed in the Firewall pane of security and privacy preferences. "I do not have it and I use most of the Adobe products. I've updated Muse yesterday. Thank you!

  Hi Kay,

  This warning is not come muse. It must come from your firewall or anti-virus software. In my view, that muse added to the firewall exceptions list should solve the problem.

  Kind regards

  Aish

• Since the installation of Firefox beta 8, cannot move tabs in the tab bar; can it be fixed without reverting to an earlier version? Thank you.

  Before moving to Firefox 8, I could drag and drop of tabs in the tab bar to reorganize, which was very handy. Since the installation of the first beta of Firefox 8, do not move the tabs. Should I go back to an earlier version of Firefox? If so, which? Thanks for any help with mai favorite browser. Tom

  I have the same problem. Works in safe mode, however.

  Edit: Disabling the Tab Mix Plus extension solves the problem.

• Since the installation of Firefox 4, I can't listen to Kol Israel

  Since the download of Firefox 4, I can't sound on Kol Israel (gold IBA World - same program). Their show to verify that Windows Media Player is not installed. Yet, when I try to install, it will not, because it is already on my computer. True-I can't listen on IE 9, but not on Firefox 4. If this problem can be solved? Much obliged for any help!

  Check that the Plugin is installed and disabled

  http://support.Mozilla.com/en-us/KB/using%20The%20Windows%20Media%20Player%20plugin%20with%20firefox?s=Windows+Media+Player&as=s

  Ask if Mozilla Firefox 4 works with Windows Media Player

  http://support.Mozilla.com/en-us/home

• Since the installation of Firefox, I can no longer post to a group of goole - even after clearing cache / cookies as suggested

  I can connect to the uk d-i-y group, but when I try a post an error message / try the message later. After clearing the cache / cookies as Google indicates that the message is that the application needs updating - refresh page. Tried to re-Assembly of the group but no change.

  Sorry for the delay in my response.

  I know that certain features of Google are not compatible with other browsers, but those who are for the most of the features of Gmail and Google Drive. You should always be able to access your Google Group.

  There is the chance that an add-on or plugin installed in Firefox is the origin of the problem. To learn, you can try the Mode without failure of Firefox.

  Firefox Safe mode is a troubleshooting mode that disables some settings and disables most Add-ons (extensions and themes).

  (If you are using an additional theme, place you in default theme.)

  If Firefox is open, you can restart in Mode without failure of Firefox in the Help menu by clicking on the restart with the disabled... modules menu item:

  

  If Firefox is not running, you can start Firefox in Mode safe mode as follows:

  • On Windows: Hold down the SHIFT key when you open the desktop Firefox or shortcut in the start menu.
  • On Mac: Hold the option key during the startup of Firefox.
  • On Linux: Exit Firefox, go to your Terminal and run firefox-safe-mode
    (you may need to specify the installation path of Firefox for example/usr/lib/firefox)

  Once you get the pop-up, simply select "" boot mode safe. "

  

  If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, and you need to understand that one. Please follow the section Troubleshooting extensions, themes and problems of hardware acceleration to resolve common Firefox problems to find the cause.

  To exit safe mode of Firefox, simply close Firefox and wait a few seconds before you open Firefox for normal use again.

  The report please come back shortly.