STFU - A Windower Addon for FFXI

STFU is a powerful and streamlined chat filter addon for Final Fantasy XI. It helps you block spam and unwanted messages from RMT sellers and other disruptive players by managing a simple user and pattern blacklist.

This version has been re-engineered for maximum compatibility by using Lua's fundamental I/O libraries, bypassing some of the more complex, environment-sensitive Windower libraries.

Features

• User Blacklist: Block all incoming messages from specific players.
• Pattern Blacklist: Filter out chat messages in Shout, Yell, and Tell that contain specific keywords, phrases, or regex patterns.
• In-Game Commands: Manage your blacklists on the fly without needing to edit any files or reload the addon.
• Simple Text-Based Settings: All your settings are saved in a human-readable blacklist.txt file, making it easy to backup or share your lists.
• User-Friendly Setup: The addon will guide you if any action is needed to set up the settings file.

Installation

1. Place the STFU folder containing STFU.lua inside your Windower addons directory.
2. Launch Final Fantasy XI and log in. Once in the game, load the addon by typing:

   //lua load stfu
   

3. The first time the addon runs, it will attempt to create a blacklist.txt file. If it fails, it will print a message in your chat log with instructions. Most commonly, it will ask you to create a data folder inside the STFU directory.

Important Note on File Permissions

If your Windower is installed in a protected directory (like C:\Program Files (x86)\), Windows may prevent the addon from saving its blacklist.txt file, even if the data folder exists. If you find that your blacklist is still not saving, you will need to set Windower to "Run this program as an administrator" in your shortcut's compatibility settings.

Usage

You can manage the addon's settings directly from the FFXI chat log using the //stfu command.

Command List

Command	Description
//stfu adduser <name>	Adds a player to the user blacklist.
//stfu deluser <name>	Removes a player from the user blacklist.
//stfu addword <pattern>	Adds a keyword or regex pattern to the blacklist.
//stfu delword <pattern>	Removes a keyword or regex pattern from the blacklist.
//stfu list	Displays your current blacklist.

Customization

All settings are stored in the STFU/data/blacklist.txt file. While you can manage the lists with in-game commands, you can also edit this file directly with any text editor to add or remove multiple entries at once.

blacklist.txt Format

The file uses a simple format with section headers. Each entry should be on its own line.

Copyright

Copyright (c) 2026 Voliathon
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.