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1) Enable the extension and open the popup page. 2) Enter keywords representing website categories to block (e.g., gaming, movie). 3) Click *Submit* for each keyword, or *Remove All* to remove all existing keywords. You can also click on the ✗ mark next to each keyword to remove them individually. 4) Switch between Strict Mode (NLP-based) and GPT Mode (ChatGPT-based). 5) Concentration will block websites relevant to the entered keywords.

