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

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]]

  • 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

  • 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]]

  • Every time I request firefox an error box comes up, {JavaScript Application} TypeError: Components.classes[cid] is undefined

    Is this an error in FireFox or JavaScript

    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

  • Cannot print from webpages. JavaScript Application TypeError: Components.classes [cid] is undefined message appears everytime I start Firefox. How do I fix this? Thanks!

    I wanted to install the Google toolbar extension, so I installed Add-on Compatibility Reporter 0.9.2. Then I installed the Google toolbar extension. When I restarted my computer I got this message. The Google toolbar did not work, so I disabled it thinking that would correct the problem. How can I get back the ability to print webpages. Thanks

    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

  • Every time I start Firefox I get : JavaScript Application TypeError: Components.classes[cid] is undefined. What causes this and how do I fix it?

    This happens also when I open another tab that requires printing.

    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]]

  • When opening Firefox 6 I receive 2 JavaScript Application errors; the 1st is "TypeError: Component.classes[TvtPwmComponent_CID] is undefined". The 2nd error is; "TypeError:Components.classes[componentid] is undefined." How can I correct these errors?

    When opening Firefox 6 I receive 2 JavaScript Application errors; the 1st is "TypeError: Component.classes['''TvtPwmComponent_CID'''] is undefined". The 2nd error is; "TypeError:Components.classes['''componentid'''] is undefined." and upon closing Firefox 6 I receive the following JavaScript error; "ReferenceError:'''M_caFxTBobj''' is not defined."

    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

  • Have updated to F.F.5. and I now get this evertime I use it. Message: [Javascript Application] TypeError: Components.classes[@softage.ru/skype/SkypeFfExtension;1'] is undefined - HELP

    Have updated to F.F.5. and I now get this error every time I use it.
    Message: [Javascript Application] TypeError: Components.classes[@softage.ru/skype/SkypeFfExtension;1'] is undefined - HELP
    As do hundreds of others it seems. If you run a search on this error.
    Many thanks for your help over this.
    Sean

    That is caused by a problem with the Skype extension for Firefox.
    See:
    *https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

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

    Every time I use F.F. I get this error. TypeError: Components.classes['@softage.ru/skype/SkypeFfExtension;1'] is undefined
    Does anyone else get this and or know how to remove it?
    Many thanks for your help and support

    This issue is caused by the Skype extension for Firefox.
    *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 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

  • 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 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

  • 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

  • Error opening FF 8 "TypeError: Components.classes[cid] is unidefined"

    I've just upgraded from FF 3.6 to FF 8. Every time I open FF 8, I get this error dialog box:
    [JavaScript Application]
    TypeError: Components.classes[cid] is unidefined
    I just performed the upgrade, so haven't used FF 8 enough yet to know if the error causes any problems.
    Thanks for your assistance.

    That 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

Maybe you are looking for