Here is some informations about ChatLog Mod for Minecraft 1.8.1, 1.7.10 Frostburn that you can need before download it
New in version 2.0 (currently only Forge):
How to install:
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This mod supports configuration and will upon first use create a properties file at .minecraft\config\ChatLog.properties. This file currently contains two configurable settings:
As new updates come, new options may be included. This will be listed in the changelog at the bottom of this post. If the mod cannot find these settings in the properties file, it will use a default value. To configure newer settings, it is recommended that you reset the configuration by deleting it (also, keep a backup). Directly adding the new options to the configuration file might work, but can produce unexpected result and even game crashes. (To fix this, undo your changes or delete the configuration file.)
Where are chat logs stored?
Chat logs are stored in the ./chatlogs folder of .minecraft_classic. To find this folder, on Windows; press Ctrl+R, enter “%appdata%/.minecraft_classic/chatlogs” and press Enter. On Mac, navigate to ~/Library/Application Support/minecraft_classic/chatlogs. On Linux, navigate to ~/.minecraft_classic/chatlogs.
Download Links for ChatLog Mod 1.8.1, 1.7.10
For Minecraft 1.6.4
For Minecraft 1.7.2
For Minecraft 1.7.10
For Minecraft 1.8