So there is a script that can delete all your Facebook message with single click and make inbox zero. You have to execute this script from URL in chrome and for Firefox user have to execute it via Web Console, which activates by pressing Ctrl+Shift+K.
Since it is related to script and executing script for a basic computer user may be difficult process. So i am trying to simplify the whole process . You may know that script can be executed from bookmark bar of browser so it become easy to execute for basic user and it will work in all browser in similar way.
Recommended : Remove Facebook "seen" feature and remain undetected
Step to delete all messages on Facebook
Update : 23 Feb 2013 now script is working properly. Thank you Alex to fixing and providing working Script. Here is Link to working script which is provided by Alex http://pastebin.com/nwjkSXDw .
Related : Create an RSS feed notification for Facebook notification .
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