How do I fix the following error, it comes up every time I open a Firefox page; "type error: Components.classes[cid] is undefined" (JavaScript Application)

Question

== Issue
==
I have another kind of problem with Firefox
== Description
==
how do I fix the following error, it comes up every time I open a Firefox page; "type error: Components.classes[cid] is undefined" (JavaScript Application)
== This happened
==
Every time Firefox opened
== a few months ago
==
== Troubleshooting information
==
Application Basics
Name Firefox
Version 3.6.3
Profile Directory
Open Containing Folder
Installed Plugins
about:plugins
Build Configuration
about:buildconfig
Extensions
Name
Version
Enabled
ID
Adblock Plus 1.2 true
Adobe DLM (powered by getPlus(R)) 1,6,2,49 true
AVG Safe Search 9.0.0.825 true {3f963a5b-e555-4543-90e2-c3908898db71}
AVG Security Toolbar 4.504.019.002 true avg@igeared
Fasterfox 2.0.0 false
Forecastfox 0.9.10.2 true {0538E3E3-7E9B-4d49-8831-A227C80A7AD3}
Java Console 6.0.05 true
Java Console 6.0.03 true
Java Console 6.0.07 true
Java Console 6.0.11 true
Java Console 6.0.13 true
Java Console 6.0.15 true
Java Console 6.0.17 true
Java Quick Starter 1.0 true [email protected]
Microsoft .NET Framework Assistant 1.2.1 true {20a82645-c095-46ed-80e3-08825760534b}
NoScript 1.9.9.77 true {73a6fe31-595d-460b-a920-fcc0f8843232}
Java Console 6.0.19 true
Java Console 6.0.20 true
Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar 0
browser.history_expire_days 0
browser.history_expire_days.mirror 180
browser.places.importBookmarksHTML false
browser.places.importDefaults false
browser.places.leftPaneFolderId -1
browser.places.migratePostDataAnnotations false
browser.places.smartBookmarksVersion 2
browser.places.updateRecentTagsUri false
browser.startup.homepage_override.mstone rv:1.9.2.3
extensions.lastAppVersion 3.6.3
general.useragent.extra.microsoftdotnet ( .NET CLR 3.5.30729)
keyword.URL http://au.yhs.search.yahoo.com/avg/search?fr=yhs-avg&type=yahoo_avg_hs2-tb-web_au&p=
network.cookie.prefsMigrated true
places.last_vacuum 1272511429
print.print_bgcolor false
print.print_bgimages false
print.print_command
print.print_downloadfonts true
print.print_evenpages true
print.print_in_color true
print.print_margin_bottom 0.5
print.print_margin_left 0.5
print.print_margin_right 0.5
print.print_margin_top 0.5
print.print_oddpages true
print.print_orientation 0
print.print_pagedelay 500
print.print_paper_data 0
print.print_paper_height 11.00
print.print_paper_size -134744073
print.print_paper_size_type 1
print.print_paper_size_unit 0
print.print_paper_width 8.50
print.print_printer Lexmark 4200 Series
print.print_reversed false
print.print_scaling 1.00
print.print_shrink_to_fit true
print.print_to_file false
print.printer_Lexmark_4200_Series.print_bgcolor false
print.printer_Lexmark_4200_Series.print_bgimages false
print.printer_Lexmark_4200_Series.print_command
print.printer_Lexmark_4200_Series.print_downloadfonts true
print.printer_Lexmark_4200_Series.print_edge_bottom 0
print.printer_Lexmark_4200_Series.print_edge_left 0
print.printer_Lexmark_4200_Series.print_edge_right 0
print.printer_Lexmark_4200_Series.print_edge_top 0
print.printer_Lexmark_4200_Series.print_evenpages true
print.printer_Lexmark_4200_Series.print_footercenter
print.printer_Lexmark_4200_Series.print_footerleft &PT
print.printer_Lexmark_4200_Series.print_footerright &D
print.printer_Lexmark_4200_Series.print_headercenter
print.printer_Lexmark_4200_Series.print_headerleft &T
print.printer_Lexmark_4200_Series.print_headerright &U
print.printer_Lexmark_4200_Series.print_in_color true
print.printer_Lexmark_4200_Series.print_margin_bottom 0.5
print.printer_Lexmark_4200_Series.print_margin_left 0.5
print.printer_Lexmark_4200_Series.print_margin_right 0.5
print.printer_Lexmark_4200_Series.print_margin_top 0.5
print.printer_Lexmark_4200_Series.print_oddpages true
print.printer_Lexmark_4200_Series.print_orientation 0
print.printer_Lexmark_4200_Series.print_pagedelay 500
print.printer_Lexmark_4200_Series.print_paper_data 1
print.printer_Lexmark_4200_Series.print_paper_height 11.00
print.printer_Lexmark_4200_Series.print_paper_size -134744073
print.printer_Lexmark_4200_Series.print_paper_size_type 0
print.printer_Lexmark_4200_Series.print_paper_size_unit 1
print.printer_Lexmark_4200_Series.print_paper_width 8.50
print.printer_Lexmark_4200_Series.print_reversed false
print.printer_Lexmark_4200_Series.print_scaling 1.00
print.printer_Lexmark_4200_Series.print_shrink_to_fit true
print.printer_Lexmark_4200_Series.print_to_file false
print.printer_Lexmark_4200_Series.print_unwriteable_margin_bottom 0
print.printer_Lexmark_4200_Series.print_unwriteable_margin_left 0
print.printer_Lexmark_4200_Series.print_unwriteable_margin_right 0
print.printer_Lexmark_4200_Series.print_unwriteable_margin_top 0
privacy.clearOnShutdown.cookies false
privacy.clearOnShutdown.offlineApps true
privacy.cpd.cookies false
privacy.item.offlineApps true
privacy.sanitize.migrateFx3Prefs true
privacy.sanitize.timeSpan 3
security.warn_viewing_mixed false
security.warn_viewing_mixed.show_once false
== Firefox version
==
3.6.3
== Operating system
==
Windows XP
== User Agent
==
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 ( .NET CLR 3.5.30729)
== Plugins installed
==
*-getplusplusadobe16249
*Office Plugin for Netscape Navigator
*Adobe PDF Plug-In For Firefox and Netscape
*Default Plug-in
*NPRuntime Script Plug-in Library for Java(TM) Deploy
*The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
*Shockwave Flash 10.0 r45
*iTunes Detector Plug-in
*Garmin Communicator Plug-In 2.8.1.0
*Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
*Java(TM) Platform SE binary
*Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers
*Npdsplay dll
*DRM Store Netscape Plugin
*DRM Netscape Network Object

Answer 1

How do I fix this problem ...javascript (cid) applications.