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Users also have the option of blocking domain-name service (DNS) for some programs but not others. The following instructions are from the article, Firewall rules for applications in Kaspersky Internet Security 7.0: Using the Delete button, you can delete a rule for the selected application (e.g., Firefox.exe).
If you need more help, read Configuring Kaspersky Internet Security (Firefox Support) and this web page or visit Kaspersky Technical Support and Knowledge Base.
In the Program Permissions list, find the entry or Application Rule for your Mozilla application and delete it.
The next time the application requests Internet access, you can set its permission level to re-add it to the list.
If the AVG Internet Security firewall is blocking internet access, delete the application rule for your Mozilla application, then grant access the next time you are asked.
The following instructions are from the AVG 8.0 Technical FAQ: Editing or deleting current rule See also Configuring CA Internet Security Suite (Firefox Support) For CA Internet Security 2007-2008, see the instructions for CA Personal Firewall, below.
A personal firewall (e.g., the Norton firewall and Zone Alarm) is a security program that controls access to the Internet.
The firewall may be a freestanding program, or it may be part of an Internet security package.
Network Security Policy", as shown in this Comodo forum topic. Comodo Firewall is no longer offered for download as a standalone application.This is the free Comodo Firewall that was previously available as a standalone application, prior to the release of Comodo Internet Security.If you need more help configuring the Comodo Firewall component to work with your Mozilla application, visit Comodo Support.For details on configuring Comodo Internet Security to work with Firefox, see Configuring Comodo Internet Security (Firefox Support) .To configure Comodo Firewall Pro, using Thunderbird as an example: The list of rules should have a line with Thunderbird.exe, [any], [any], TCP/UDP In/Out and a green check mark next to Allow.Comodo Firewall Pro, by default, keeps track of each parent (host process) for a given application .If you don't need this fine grained control rather than pressing the parent browse button select "skip parent check" to make it use one rule (and avoid specifying who can launch it).If it already has multiple rules selecting "skip parent check" in any of those rules should automatically delete the other Thunderbird rules.A firewall can also be implemented in a separate hardware device.After your Mozilla application is installed or updated, your security software must be configured to allow Internet access.