Hi there I have updated to your lates version but every time I open up the browser and new windows I get this error message 'TypeError: Components.classes[cid] is undefined' although it does work but the message is very annoying

Question
Hi there I have updated to your lates version but every time I open up the browser and new windows I get this error message 'TypeError: Components.classes[cid] is undefined' although it does work but the message is very annoying

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

Similar Messages

  • When I open firefox 4 or a new window I get an error message "components.classes[cid] is undefined" how do I fix this

    I upgraded to firefox 4 and now whenever I open the browser or a new window in the browser I get an error message that reads "Components.classes[cid] is undefined. How do I fix this message. I have reinstalled firefox 4 three times and still get the message. I am running windows 7 pro

    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
    * [[Troubleshooting extensions and themes]]
    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")

  • When I try and launch Firefox, I get this error message A copy of Firefox is already open. Only one copy of Firefox can be open at a time." and have tried all of the trouble shooting tips, can you help?

    When I try and launch Firefox, I get this error message >A copy of Firefox is already open. Only one copy of Firefox can be open at a time." and have tried all of the trouble shooting tips, can you help? I thought if I were to completely uninstall and re install it might help, but I cannot seem to find instructions to do this....

    See [[Firefox is already running but is not responding]], the image shown in that article is the Windows equivalent of the error message that you are receiving, but the information relates to the Mac.

  • Recently downloaded Firefox 4. Now when loading it, I get this Java Console Message: TypeError: Components.classes[cid] is undefined I click OK and everything works OK, but this didn't happen before.

    Please tell me how I can get rid of a Java Console Msg. every time I load Firefox 4 (which I just updated to). This box pops up when trying to load Firefox: TypeError: Components.classes[cid] is undefined. I have to click on OK before it will load. ANNOYING. This didn't happen until I updated to Firefox 4.

    That indicates that you have an add-on that is not compatible with Firefox 4. To find out which one, use the procedure in this link - https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

  • I get this message after updating to Firefox 6.0"TypeError: Components.classes[cid] is undefined" in Windows 7

    I upgraded to firefox 6.0 and immediately after that I got a message saying that two of my add ons 1.Bit Torrent tool Bar 2.AVG Search were not compatible with Firefox 6.0 and when this was resolved i would be informed.I agreed to this but after restarting firefox I got the above "TypeError: Components.classes[cid] is undefined".
    I use windows 7.0 so could you please guide me in how to resolve this pop up.Thanks

    This issue can be caused by an extension that isn't working properly.
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
    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

  • 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.

  • 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

  • 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]]

  • 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]]

  • When I start Firefox, Iget the following message "TypeError: Components.classes[cid] is undefined"

    TypeError: Components.classes[cid] is undefined. This is the message thast pops up every time I start Firefox.

    This issue can be caused by an extension that isn't working properly.
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes
    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

  • 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.

  • 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]]

  • Everytime I open a window in Firefox 4 beta 2 I get a messeage that says TypeError: Components.classes(cid) is undefined, when I click OK it opens up the new window. How can I fix this?

    Everytime I open a window in Firefox 4 beta 2 I get a messeage that says TypeError: Components.classes(cid) is undefined, when I click OK it opens up the new window.

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).<br />
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]<br />
    <br />
    If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.<br />
    You can use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.<br />
    You have to close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")<br />

  • How to deal with "TypeError: Components.classes[cid] is undefined". Seems to affect the

    When starting FIREFOX 4.0, before actual appearance on screen a small error sign shows, apparently relating to a JavaScript problem, reading: TypeError: Components.classes[cid] is undefined. So far I figured out that it affects the bar where the internet address is typed in; it does not work on 'enter' command but will do when the arrow on the right of the bar is engaged by cursor and left mouse click.
    Hope you can understand what I mean, if not please do not hesitate to contact me.

    In my case I found this to be associated with a third-party extension, disabling the extension disabled the functionality. Try running the browser in safe-modem turning off all extensions and defaulting the browser to initial install state, then enable each extension one at a time, starting with the firefox supported extensions until you find the culpritt

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