Designing a more usable open-source chat room, starting with YouTube's chat room. Help us improve chat functionality. Feedback is appreciated! Please mail your comments to dshumw2@uic.edu. We found two YouTube chat CPU bugs, which this extension provides a temporary fix for: 1) Runs at 100%+ CPU when many chatters. 2) Runs at 100%+ CPU after posting a message and "slow mode" is on in the chat. There is some sort of timer event which forces CPU usage to rise sharply. These bugs are fixed as follows: Bug 1) The HTML div element containing the chat messages is hidden using CSS ("display:none;"). Bug 2) The "Send" button with circular timer is removed from the page on page load.