Currently, when using OpenAI Plus, the user is limited to X messages in Y hours. At the time of publishing this, X=50 and Y=3.
This Chrome extension adds a simple message to display the amount of messages remaining in that window, and the time until the window resets.
OpenAI has not published exactly how this limit works, however some have written that it is not a sliding window, but rather a window of time that begins at the first message sent and then reset after Y hours have passed.
This extension is built with that design in mind.