While opening firefox or any page adialogue box appear " [java script application] An error occured throwing an exception" -what to do

i am using vista sp1, recently while opening Firefox or any link within it a dialogue box appear " [java script application] An error occured throwing an exception" . however both cancelling or accepting opens the link or firefox but its nagging plz help
== This happened ==
Every time Firefox opened
== few days ago

The code is not working because you made a mistake somewhere, duh! So figure out what (hint: firefox javascript console, it's your friend) and fix it!
And next time when you post code: use the [ code ] tags to pretty format your code, as it is now it's unreadable.
http://forum.java.sun.com/help.jspa?sec=formatting

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When opening firefox 3.6.8 I get a java script error at line 323

When trying to open Firefox 3.6.8, I get a java script error:
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If I cancel the error message, FF opens, but then my google search bar will not search & then FF freezes up. I'm using Windows7.

That is a problem with the Forecastfox extension.
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).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]

I cannot get my iPod to sync to iTunes. When I try to sync it, a box appears which reads: "An unknown error occurred (13019)."

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Just updated firefox, every time I open it I get a message about a java script application

The message says
[Java Script Application]
can't create mcaffee plug-in object. TypeError: Components.classes[cid] is undefined

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
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I can't get firefox to launch I'm getting a java script application - bbyln is nt defined

I can't get firefox to launch. I'm getting an error report:
java script application - bbyln is not defined

[ I've solve ] Well, I was too upset from the errors of babylon, sometimes it didn't allowed me to browse internet and oftentimes it ruined my new(default) tab opening parameters, so finally after damn research i figured it out how to get rid from these errors.; these files (software /errors) weren't visible anywhere e.g. control panel, system32 etc. i got em from C:\......, then i deleted em and got a complete calm. so here you go and remove both things;
C:\Program Files\Mozilla Firefox\searchplugins (bbyln.dll).
C:\Program Files\Mozilla Firefox\extensions (bbyln folder)
after to remove (babylon) relevant files restart your Mozilla firefox. WAIT. WAIT. don't forget to complement me...just say loudly....Well done dude, You're Genius ....O_o....!!!!
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When start firefox, error message appears (Java Script Application) "Cannot load xml rules - no root nod"e

Cannot load xml rules - no root node

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
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After apgrading a suggesed firefox download, each time I log onto Mozilla, the following application pops up constantly: (Java Script Application) Type Error:glLTFFObj is undefined. How do I remove this from my pc altogether,as it is most annoying

This type error pops up constantly and when I either click on OK or the red cancel on the top right hand side, it does not make any difference and is constantly there giving me total frustration.
How do I remove this application please?
Kindest Regards
Dave

Do you have the Yahoo toolbar? Other users have reported a similar JavaScript error when loading sites with that toolbar installed. If you have it, you could disable it or perhaps there is an updated version available.
If you don't have that toolbar, it could be one of your other add-ons. Check out cor-el's answer in this thread: [http://support.mozilla.com/en-US/questions/795003 When starting Firefox 4 I am presented with a JavaScript Application message "TypeError ksClass is undefined" | Firefox Support Forum | Firefox Help].

I have both Mozilla Firefox & Internet Explorer installed one my computer, but chose to us Firefox. Several days ago while opening Firefox a screen popped up wh

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As far as I know, Mozilla doesn't have any paid support service. There are lots of other companies that advertise paid support for desktop software including Firefox. Maybe you called one of those other providers??
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JackieMars71 I would recommend reviewing your installation log files to determine if there are any errors during the installation process. You can find information on how to locate and interpret your installation log files at Troubleshoot install issues with log files | CC - http://helpx.adobe.com/creative-cloud/kb/troubleshoot-install-logs-cc.html. You are welcome to post any specific errors you discover to this discussion.

Recently, whenever I try to open Firefox, I get a dialog box: Exc in ev handl: TypeError: brw is undefined (JavaScript Application). Firefox is definitely my default browser

Question
Recently, whenever I try to open Firefox, I get a dialog box: Exc in ev handl: TypeError: brw is undefined (JavaScript Application). Firefox is definitely my default browser.
After clicking OK Firefox opens.

Doesn't work out for me either, so I keep it disabled, because it slows down the searches, and it won't stream its additions onto the pages after the first page of search results. Streaming or page zipping allows me to scroll down to the next page of search results without selecting the page number.

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Do you see that file in Tools > Downloads?
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See http://kb.mozillazine.org/Unable_to_save_or_download_files#Manually_delete_download_history
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#### PC Workstation Environment ####
Firefox 13.0.1
Windows 7
Symantec Endpoint Protection 11.0.6200.754
--

Your problem sounds like the one that a co-worker and I started to have about the same time. Check your Symantec client management control log. You might see a line like the following.
Date and Time Severity Level Action Test / Production Description API Class Rule Caller Process ID Caller Process Parameter User
2012-07-30 10:48:09 AM 15 Block Production Unauthorized NT call rejected by protection driver. System Built-in rule 1608 FlashplayerPlu FuncID-B6H, R... None
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Symantec Endpoint Protection version 11.0.6100.645
Flash version 11.3.300.268
Firefox version 14.0.1
Windows 7 32-bit service pack 1

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This has only happened since reinstalling my system a couple of weeks ago.
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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.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
See also:
*[[/questions/921535]]

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Hi noswam123,
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Best,
Sara

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While opening firefox or any page adialogue box appear " [java script application] An error occured throwing an exception" -what to do

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