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

Similar Messages

  • 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

  • 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]]

  • 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

  • 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

  • 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]]

  • 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

  • When I enter any site, including Mozilla, I get a message that says "TypeError: Components.classes[cid] is undefined" I have to "x" that message to enter.

    This also applies to opening links within sites. I do this several hundred times a day in my work and it happens every time.

    That indicates that you are using an add-on that is not compatible with Firefox 4. For details of how to troubleshoot this to find out what one is causing the problem see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • HT5634 27 in late 2009 iMac and using bootcamp 4 and windows 8 64 bit I am getting a error message upon startup

    I have a 27 in late 2009 iMac and using bootcamp 4 and windows 8 64 bit I am getting a error message upon startup.  Any way to fix it?

    Windows 8 is not supported on your computer.
    http://support.apple.com/kb/HT5634

  • Upon startup i get error msg: TypeError: Components.classes[cid] is undefined

    win7 ultimate, ff4, when opening via shortcut or task-bar I get an error message first, "TypeError: Components.classes[cid] is undefined", click ok and ff loads and runs just fine, i have uninstalled ff and reinstalled twice. problem still exists

    This is probably due to an incompatible add-on. For details of how to troubleshoot that see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • Error message at startup ug-in object: TypeError: Components.classes[cid] is undefined

    Mac 10.5.8 When I click alias for Firefox 4.ob-12 and now Firefox 4.0 I get the following error message that halts the startup until I click "Ok".
    ug-in object: TypeError: Components.classes[cid] is undefined
    What's wrong?

    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]]

  • 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]]

  • I reinstalled hoping it would get rid of the error message that pops up each time i open it TypeError: Components.classes[cid] is undefined

    When I open up Mozilla i get this error message--TypeError: Components.classes[cid] is undefined
    also when i am working on my real estate web site and pull up a name i get the same messag. At the top it always says-- Java Script Application

    That error is caused by an incompatible/malfunctioning add-on. To identify the culprit follow the procedure in the [[troubleshooting extensions and themes]] article. One add-on that has caused this error for some is AVG safe search.

  • 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

  • After I downloaded Firefox 4 and I try to open Firefox, I get this error message, "plug-in object: TypeError: Components.classes[cid] is undefined". I click "OK"; Firefox opens and works just fine. Any suggestions??

    Not much to add. Before Firefox will open, I get this error message, "plug-in object: TypeError: Components.classes[cid] is undefined". I click the "OK" button; Firefox opens and I have no further problems.
    I use an Apple with OS v. 10.6.7 and had no problems until I downloaded Firefox 4.0

    That indicates you have an add-on that is not compatible with Firefox 4. For details of how to troubleshoot that see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

Maybe you are looking for

  • How can we bug Apple to enable temp readouts?

    I've read somewhere that Apple has said that they will enable temperature readings in the new Macbook Pros if there is enough interest. How can I express my interest to them?

  • How to set and reset a file as readonly and hidden

    Hi all I am trying to produce the explorer as it is in windows. I am using Jtable instead of JTree. I want to show properties for each and every folder or file. While showing properies i want the user to set the file as readonly and sometime he doesn

  • Java Add-In

    Hello to all:       I'm newby, and I want to dowload de Java Add-In from the sap marketplace but I don't find it, can someones tell me the route for find it and download. Download -> Installation and Upgrades -> Entry by Application Group -> SAP Netw

  • OCFS2 Partition across multiple Disks

    Does anyone know if you can create an ocfs2 partition that spans multiple drives - I tried creating an LVM - but this will not work for sharing - Is a Clustered Volume Group Needed ?

  • How can I turn off auto-hide menu bar in Terminal app?

    This is soooo anoying.   Open terminal app in fullscreen mode, open a few tabs, now when you move your mouse to the top to click on a new tab, the menu bar shows itself and covers the tabs. I want to turn off this feature to auto-hide the menu bar.