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-Windows Firewall comes with Windows XP and Vista. Firewalls determine which programs can connect to the outside world and what kinds of connections they can make. If Windows Firewall doesn't permit Firefox to make connections, Firefox will give an "Server not found" error when you try to browse to web sites.+{ANAME()}TopOfPage{ANAME}
 +Windows XP and Vista provide a built-in firewall component, which controls the programs that can access the Internet and the types of connections that they can make. If Windows Firewall doesn't permit Firefox to make connections, Firefox generates a "Server not found" error when you try to browse to web sites.
 +;:^__Note: This article applies to Windows XP and Windows Vista only.__^
 +
 +
 +!Checking for Windows Firewall
To see if you're running Windows Firewall: To see if you're running Windows Firewall:
# Open the Windows Control Panel. # Open the Windows Control Panel.
-** __(Windows Vista)__ Click the Windows icon and choose {PATH()}Control Panel{PATH}.+** __(Windows Vista)__ Click the Windows icon, and select {PATH()}Control Panel{PATH}.
-** __(Windows XP)__ Open the Windows Start Menu, then choose {PATH()}Control Panel{PATH}. Your Start Menu may have the {PATH()}Control Panel{PATH} as an item under {PATH()}Settings{PATH}.+** __(Windows XP)__ Open the Windows Start Menu, and select {PATH()}Control Panel{PATH}.
-# Open the Windows Security Center.+# In the Control Panel, open the Windows Security Center.
-** __(Windows Vista)__ Under the {DIV(class=button,type=>span)}Security{DIV} header, click {DIV(class=button,type=>span)}Check this computer's security status{DIV}+** __(Windows Vista)__ Under the {DIV(class=button,type=>span)}Security{DIV} header, click {DIV(class=button,type=>span)}Check this computer's security status{DIV}.
-# Click the Firewall header. It will expand. Look for the text "Windows Firewall is actively protecting your computer". If you see it, you are using Windows Firewall.+# Open the {DIV(class=button,type=>span)}Windows Firewall{DIV} header. Try to locate the following text: %%% __Windows Firewall is actively protecting your computer__
 +# If it is set to __On (Recommended)__, you are using Windows Firewall.
 + 
-If you're using Windows Firewall, ensure that Windows Firewall is properly configured.+!Configuring Windows Firewall
-# Starting from the Windows Security Center, open the Windows Firewall settings dialog.+If you're using Windows Firewall, you must verify that it is properly configured.
-** __(Windows Vista)__ Click on {DIV(class=button,type=>span)}Windows Firewall{DIV} in the upper left. Then click on {DIV(class=button,type=>span)}Change settings{DIV}. You may receive a User Account Control pop-up. Click {DIV(class=button,type=>span)}Continue{DIV}.+# In the Windows Security Center, open the Windows Firewall settings dialog.
-# On the {PATH()}General{PATH} tab, the checkbox before {DIV(class=button,type=>span)}Block all incoming connections{DIV} should be unchecked.+** __(Windows Vista)__ Click {DIV(class=button,type=>span)}Windows Firewall{DIV}. Then click {DIV(class=button,type=>span)}Change settings{DIV}. You may receive a User Account Control pop-up. Click {DIV(class=button,type=>span)}Continue{DIV}.
-# Click on the {PATH()}Exceptions{PATH} tab.+# Click the {PATH()}General{PATH} tab.
-# If "Mozilla Firefox" is listed, click on it and then click on the {DIV(class=button,type=>span)}Delete{DIV} button.+# Deselect the checkbox for __Block all incoming connections__.
-# In the Delete a Program dialog that comes up, click {DIV(class=button,type=>span)}Yes{DIV}.+# Click the {PATH()}Exceptions{PATH} tab.
-# Still on the {PATH()}Exceptions{PATH} tab, make sure the checkbox for {DIV(class=button,type=>span)}Notify me when Windows Firewall blocks a new program{DIV} near the bottom is checked.+# If __Mozilla Firefox__ is listed, select it and click the {DIV(class=button,type=>span)}Delete{DIV} button.
-# Press OK. Now that Windows Firewall is properly configured, try running Firefox. You may receive a Windows Security Alert dialog asking if you want to block Firefox. Choose {DIV(class=button,type=>span)}Unblock{DIV}.+# In the Delete a Program dialog, click {DIV(class=button,type=>span)}Yes{DIV}.
 +# On the {PATH()}Exceptions{PATH} tab, select the checkbox for __Notify me when Windows Firewall blocks a new program__.
 +# Click {DIV(class=button,type=>span)}OK{DIV}.
 +# Now, try browsing to a web site with Firefox. You may receive a Windows Security Alert dialog asking if you want to block Firefox. Click {DIV(class=button,type=>span)}Unblock{DIV}.

Revision as of 21:19, 11 September 2007

{ANAME()}TopOfPage{ANAME} Windows XP and Vista provide a built-in firewall component, which controls the programs that can access the Internet and the types of connections that they can make. If Windows Firewall doesn't permit Firefox to make connections, Firefox generates a "Server not found" error when you try to browse to web sites.

^__Note
This article applies to Windows XP and Windows Vista only.__^


!Checking for Windows Firewall To see if you're running Windows Firewall:

  1. Open the Windows Control Panel.
    • __(Windows Vista)__ Click the Windows icon, and select {PATH()}Control Panel{PATH}.
    • __(Windows XP)__ Open the Windows Start Menu, and select {PATH()}Control Panel{PATH}.
  1. In the Control Panel, open the Windows Security Center.
    • __(Windows Vista)__ Under the {DIV(class=button,type=>span)}Security{DIV} header, click {DIV(class=button,type=>span)}Check this computer's security status{DIV}.
  1. Open the {DIV(class=button,type=>span)}Windows Firewall{DIV} header. Try to locate the following text: %%% __Windows Firewall is actively protecting your computer__
  2. If it is set to __On (Recommended)__, you are using Windows Firewall.


!Configuring Windows Firewall If you're using Windows Firewall, you must verify that it is properly configured.

  1. In the Windows Security Center, open the Windows Firewall settings dialog.
    • __(Windows Vista)__ Click {DIV(class=button,type=>span)}Windows Firewall{DIV}. Then click {DIV(class=button,type=>span)}Change settings{DIV}. You may receive a User Account Control pop-up. Click {DIV(class=button,type=>span)}Continue{DIV}.
  1. Click the {PATH()}General{PATH} tab.
  2. Deselect the checkbox for __Block all incoming connections__.
  3. Click the {PATH()}Exceptions{PATH} tab.
  4. If __Mozilla Firefox__ is listed, select it and click the {DIV(class=button,type=>span)}Delete{DIV} button.
  5. In the Delete a Program dialog, click {DIV(class=button,type=>span)}Yes{DIV}.
  6. On the {PATH()}Exceptions{PATH} tab, select the checkbox for __Notify me when Windows Firewall blocks a new program__.
  7. Click {DIV(class=button,type=>span)}OK{DIV}.
  8. Now, try browsing to a web site with Firefox. You may receive a Windows Security Alert dialog asking if you want to block Firefox. Click {DIV(class=button,type=>span)}Unblock{DIV}.