I have tried https://www.getmerlin.in/chat on: Chrome Version 134.0.6998.36 (Official Build) (64-bit) Firefox version 136.0 (64-bit) Brave 1.76.73 Chromium: 134.0.6998.45 (Official Build) (64-bit) So no - not a browser issue. The same behaviour repeats, which is a strong indication that in your app, built with - React 18.3.0-canary-178c267a4e-20241218, Tailwind CSS 3.4.17, amongst other tech, you have not handled the focus of the textarea properly. I believe I explained that very clearly when I first reported it, but let me be even more clear: The send button is set to be disabled if the textarea has no value, I assume something like textareaValue = "", now as soon as this condition changes - user writes any value, of course the send button becomes enabled, which is fine, however at the same time - the unwanted behaviour is that the textarea loses focus and user has to click on it to continue typing. This issue typically occurs when the React component re-renders due to state or props changes, causing the textarea to lose focus. In your case, it seems that when the textareaValue changes, React is performing a re-render, and the textarea loses focus because it's not properly managed. Please have someone look into it.