Patch 4.3 introduced a bug which caused the mature language filter to be re-enabled upon logging off or reloading the UI. When introduced, Blizzard provided no timeframe for a fix. This simple addon will automatically disable the mature language filter when logging into a character.
ProfanityFix also gives you the ability to manually toggle the mature language filter and remembers the setting between sessions. Just type /pf to toggle the filter on and off.

