Firefox 4.0 displays an error code when launching: "TypeError: Components.classes[cid] is undefined", add-ons doesn't work and I can't open any web pages

Hello
I've been running Firefox 3.6.16 with no problems at all, and this morning decided to upgrade to Firefox 4.0, as the developer of the them I use, Foxscape, has upgraded it to work with 4.0. The installation appeared to be as normal, but when I launched 4.0, the following error message appeared: error "when launching firefox 4.0 TypeError: Components.classes[cid] is undefined". The browser launched, but while I could go to webpages if they were in my bookmarks, so no problems with my internet connection, but when I typed in a URL (for example google.co.uk) and pressed "go", nothing happened. Similarly, when I tried to go to add-ons, it was as if I hadn't clicked anything. I wondered whether it was an issue with Foxscape (although I've never had any problems before when upgrading, as the standard theme just appears) so I reverted to 3.6.16, switched the theme to standard, then tried upgrading to 4.0 again. The same thing happened, so I'm positive it's got nothing to do with Foxscape.
I run Windows Vista Home Edition on a Dell Inspiron. I also have IE 9 installed (I installed it a few weeks ago, and it's been running fine with 3.6.16). I've never had any problems with Firefox before; I'm very keen to upgrade to 4.0, and would appreciate your help in fixing this.
Thanks

Start Firefox in [[Safe 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:
* [[Troubleshooting extensions and themes]]

Similar Messages

  • Upgraded to FF4, Have windows 7, everytime I click on FF4 to go online, I get pop-up box with error message [Javascript: application] Typeerror: Components.classes[cid] is undefined...when I click OK it lets me online but this is a pain

    I get an error message... [Javascript: application] upper left corner in the pop-up box, then in the body of the pop-up box it says, Typeerror: Components.classes[cid] is undefined...when I click OK it lets me online but this is a pain, also, I get the same message when I try to open another window while using FF4...Thanks and hope you can help...

    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]

  • Error code: [JavaScript Application] TypeError: Components.classes[componentid] is undefined.

    I get this error when starting Firefox, or when opening a new window. When I close Firefox, or close the new window, I get a different error message: [JavaScript Application] ReferenceError: m_caFxTBobj is not defined

    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]
    * [[Troubleshooting plugins]]
    If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
    * Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
    * Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
    If you haven't done yet then you should create a new profile exclusively for the 4.0 beta version and create a desktop shortcut with -P "profile" appended to the target to launch that profile.
    * http://kb.mozillazine.org/Testing_pre-release_versions
    * http://kb.mozillazine.org/Creating_a_new_Firefox_profile_on_Windows
    * http://kb.mozillazine.org/Shortcut_to_a_specific_profile
    * http://kb.mozillazine.org/Using_multiple_profiles_-_Firefox

  • I installed the new update 7.0.1. When I open the program, a small box with an error message pops up: "---------- TypeError: Components.classes[cid] is undefined."

    It has an OK button. When I click it the program opens.
    Why is this? How do I get rid of it?
    I have tried deleting, downloading the update again, reinstalling it twice. This didn't help.

    This issue can be caused by an extension that isn't working properly.
    Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
    *Don't make any changes on the Safe mode start window.
    *https://support.mozilla.com/kb/Safe+Mode
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • By opening Firefox I get since recently the message: [JavaScript-toepassing] TypeError: Components.classes[cid] is undefined

    After clicking [OK] in the Error-message Firefox runs without problems. It seems to be only annoying.

    Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
    *Don't make any changes on the Safe mode start window.
    *https://support.mozilla.com/kb/Safe+Mode
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • I get an error message upon startup: "TypeError: Components.classes[cid] is undefined." Help!

    In addition to the error message upon startup, the Enter key does nothing when I type a URL in the search bar; I have to click on the green arrow everytime to navigate to new pages. My about.home page is also empty when the program starts except a blank search bar in the center with no text anywhere around it. I installed 4.0 twice to see if that would fix the problems, but it didn't.

    Usually caused by an incompatible extension.
    http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

  • Since upgrading to 4.01, I get an error message: [JavaScript Application] TypeError: Components. classes [cid] is undefined.

    I seem to have screwed up my Firefox, I guess. Whenever I go out of Firefox and try to come back in, I get that message, I click on OK and everything is fine again until I close our Firefox and try to return... What's the problem?

    Usually caused by an incompatible extension.
    http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

  • Getting error message when starting Firefox. Msg as follows: TypeError: Components.classes[cid] is undefined (using on Windows 7) Help?

    Getting the following error message when I start Firefox. ''TypeError: Components.classes[cid] is undefined''
    Do not know where to go to fix this. Running my laptop on Windows 7.

    This issue can be caused by an extension that isn't working properly.
    Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
    *Don't make any changes on the Safe mode start window.
    *https://support.mozilla.com/kb/Safe+Mode
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • The following error message came when I tried to open Firefox and install Firefox Home. "can't create mcafee plug-in object: TypeError: Components.classes[cid] is undefined"

    The following error message came when I tried to open Firefox and install Firefox Home.
    "can't create mcafee plug-in object: TypeError: Components.classes[cid] is undefined"

    This issue can be caused by an extension or plugin that isn't working properly.
    Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    * Don't make any changes on the Safe mode start window.
    See:
    * [[Troubleshooting extensions and themes]]
    * [[Troubleshooting plugins]]

  • I am getting an error message when I open Firefox 5 (Win.Vista) "TypeError:Components.classes[cid] is undefined." How can I get rid of this? Thank you.

    Only started since the upgrade. Windows Vista Home 32 bit.
    The error message reads:
    "TypeError:Components.classes[cid] is undefined."

    Try the suggested idea above. I just disabled all the add-ons which were not compatible with FF 5 and did a FF restart. That fixed the problem. I then enabled each one, one at a time, with a FF restart until the problem came back. I then disabled that add-on.

  • I am getting this error message when i try to open FF "ug-in object: TypeError: Components.classes[cid] is undefined"

    This is the error message I get when i click to open FF after i downloaded the newest version: "ug-in object: TypeError: Components.classes[cid] is undefined" . The message is in the top left corner and not fully visible. i sent a message a few min ago so i am sending this b/c i copied the error message to help diagnose the problem.

    This issue can be caused by an extension that isn't working properly.
    Start Firefox in [[Safe 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:
    * [[Troubleshooting extensions and themes]]

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

    What can I do about this:
    After upgrading to firefox 6, I get this error.
    When I click to open Firefox, A box open with the following error:
    JAVASCRIPT Application
    TypeError: Components.classes[cid] is undefined?
    After I click close on the box, then Firefox will start. I really just want to get the error fixed so that when I want firefox open, I don't have to see this box anymore.

    You need to figure out which add-on is causing that error and disable it until the developer of that add-on fixes it. There may be an error message about that in the Error Console, accessed through the Web Developer menu item or through {Ctrl + Shft + J}.
    Also see this: <br />
    http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes

  • When I open Firefox, the browser does not open. Instead I get a small window that says: TypeError: Components.classes[cid] is undefined. How do I fix this?

    I tried to uninstall AVG antiviral software, but it did not uninstall. Next, when I try to open Firefox I get a box popup that says:
    TypeError: Components.classes[cid] is undefined.
    If I click OK in that box, I can then open Firefox.
    Also I can no longer update Java.
    Help!

    Possibly you have "AVG Safe search" extension installed as part of "AVG Free", solution involves reinstalling :AVG Free" without the Link Scanner component see
    * http://kb.mozillazine.org/Problematic_extensions
    * symptom was noted in https://support.mozilla.com/questions/865877
    Other possibilities
    * "OneClick YouTube Downloader 1.07" as reported in
    *: https://support.mozilla.com/questions/864343
    * "Java console" needs to be updated as reported in
    *:https://support.mozilla.com/questions/863711]
    * "HP Smart Print 1.0" as reported in
    *: https://support.mozilla.com/questions/857283
    * "McAfee Site Advisor" as noted in (also see Problematic extensions above)
    *:https://support.mozilla.com/questions/802381
    *a theme After switching to the default theme the JavaScript error doesn't appear. (View > Page Style > No Style or if "Firefox" button use "Alt" first to get to the View menu)
    *:https://support.mozilla.com/questions/837840
    *various extensions/applications but is 1 year back and Firefox 3.6.6
    *:https://support.mozilla.com/questions/729606
    If none of the above solve you problem use diagnostic approach...
    *: https://support.mozilla.com/questions/837840

  • Since installing Firefox 4, I keep getting this message "TypeError: Components.classes[cid] is undefined" when a window should open. Also print and print preview don't work properly anymore.

    Since installing the newest version of Firefox, This message "TypeError: Components.classes[cid] is undefined" appears in a box when a new window should open. Also, what you see in print print preview is not what prints.

    This type of error is usually caused by an add-on you are using that is not compatible. It could be anything from an antivirus link scanner like AVG Safe Search add-on, or McAfee Site Advisor add-on, or something similar. To confirm what add-on is causing this use the procedure in this link:
    https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
    Try Disabling the last add-on that was installed prior to upgrading to version 5.0
    Check and tell if its working.

  • Get error "TypeError: Components.classes[cid] is undefined" and can't load web pages. Problem with Firefox 5?

    I tried repeatedly to load Firefox 5. The Error "TypeError: Components.classes[cid] is undefined" keeps coming up. The browser loads but any URL I enter doesn't load. Sites activated by buttons do load. Internet Explorer works.

    07-05-11 When I turned on my laptop (Vista) this morning, I got a Start in Safe Mode and Repair message so I did. It suggested a System Restore, I hit OK. When it started like normal, I waited a few minutes then TRIED to launch Firefox 5.0 but kept getting a Mozilla Crash Report dialogue. So I instead opened Firefox 4.0b12 --error free-- so I could get here to get help. When I tried the Run... firefox.exe -profilemanager step, I get the subject error. When I try to open FF 5.0 in Safe Mode by holding down the shift key simultaneously, I get the subject error and no launch (though no Crash box either). I will try to let the FF 5.0 Updater run when it appears again but it never lets me choose when to Ask Again so I don't think it'll show again until tomorrow. Sigh. Oh, and like someone at a different version of this error blog re WinVista 32bit, now I'm getting the issue of Enter not executing the URL typed in the address bar; I had to click the arrow.
    I hope the Update is to fix this problem.

Maybe you are looking for

  • Itunes won't open after update to 11

    I've been running Itunes 10 on my macbook pro (Snow Leopard) until today when I updated to 11.  The update appeared to complete successfully (no error messages).  But afterwards when I try to open iTunes it immediately exits (with no user-facing mess

  • Deploying a WAR File, WL 6.0

    Hi! I'm trying to deploy a web application on WL 6.0. This application runs on Tomcat 3.x and 4.x. I have a WAR file containing jars, JSP, html etc. Using the tools of WL6.0 I can upload and deploy the application. I can also access the HTML files fr

  • JSF Page is not  rendering correctly on NON JSF Action

    Hi All, When I go from JSF actions (clicking HtmlCommandButton HtmlActionLink), I am getting the correct page. But when I come from non jsf actions say if I come through by clicking normal anchor tag or javascript action or normal html submit button,

  • Why using RSPO_*_SPOOLREQUEST fm (open, write, close) instead of ABAP WRITE

    I just discovered the RSPO_OPEN_SPOOLREQUEST, RSPO_WRITE_SPOOLREQUEST, and RSPO_CLOSE_SPOOLREQUEST function modules (in this thread : Re: Sending attachment using class cl_document_bcs as PDF, and in many threads in the forum). But what is the intere

  • Visual c++ 2012 won´t install on win10

    im using the windows 10 tecnical preview and the microsoft visual c++ 2012 redistributale won´t install, it start´s and i accept the terms and then it only says initializing (i waitied about 1 hour and it said no more), and when i try to cancel the i