diff --git a/browser/installer/windows/config.it b/browser/installer/windows/config.it
index 937304565a4..eeffe1fa362 100644
--- a/browser/installer/windows/config.it
+++ b/browser/installer/windows/config.it
@@ -481,7 +481,7 @@ Message Retry0=Some files have failed the CRC check and are being downloaded aga
 Show Dialog=AUTO
 
 [Check Instance0]
-Class Name=MozillaMessageWindow
+Class Name=FirefoxMessageWindow
 Window Name=
 Process Name=$MainExeFile$
 Pretty Name=$ProductNameInternal$
@@ -497,42 +497,12 @@ Message wait=Shutting down $ProductNameInternal$.  Please wait...
 Close All Process Windows=TRUE
 
 ; These keys are not normally necessary for checking instances.  They are
-; set here because Mozilla requires a way to shut down it's turbo mode.
+; set here because Mozilla requires a way to shut down its turbo mode.
 Extra Cmd0 Reg Key Root=HKEY_LOCAL_MACHINE
 Extra Cmd0 Reg Key=Software\Microsoft\Windows\CurrentVersion\App Paths\$MainExeFile$
 Extra Cmd0 Reg Name=
 Extra Cmd0 Parameter=-kill
 
-[Check Instance1]
-Class Name=Netscape6MessageWindow
-Window Name=
-Process Name=Netscp.exe
-Pretty Name=Netscape
-;*** LOCALIZE ME BABY ***
-Message=Download of $ProductName$ was successful. However, Netscape must be closed to proceed with this installation. Click OK to exit Netscape automatically and to begin installation.
-;*** LOCALIZE ME BABY ***
-Message Full Installer=Netscape must be closed to proceed with this installation. Click OK to exit Netscape automatically and to begin installation.
-;*** LOCALIZE ME BABY ***
-Message wait=Shutting down Netscape.  Please wait...
-
-; This key indicates whether or not to close all the windows associated with
-; the process id of this app instance window found.
-Close All Process Windows=TRUE
-
-; These keys are not normally necessary for checking instances.  They are
-; set here because Netscape 6 requires a way to shut down it's turbo mode.
-; This will stop at the first one that succeeds (key and file found).
-Extra Cmd0 Reg Key Root=HKEY_LOCAL_MACHINE
-Extra Cmd0 Reg Key=Software\Microsoft\Windows\CurrentVersion\App Paths\Netscp6.exe
-Extra Cmd0 Reg Name=
-Extra Cmd0 Parameter=-kill
-
-Extra Cmd1 Reg Key Root=HKEY_LOCAL_MACHINE
-Extra Cmd1 Reg Key=Software\Microsoft\Windows\CurrentVersion\App Paths\Netscp.exe
-Extra Cmd1 Reg Name=
-Extra Cmd1 Parameter=-kill
-
-
 ;DependeeX=Component A means
 ;  - if Component A gets checked this component gets checked
 ;  - if Component A gets unchecked this component gets unchecked