How to Disable the Drop Confirmation Dialog in Drop Confirm Mod
If the confirmation prompt is interrupting your normal inventory management, you can turn it off entirely or narrow it down so it only appears in dangerous situations.
Turning the Confirmation Off
Open the mod's configuration screen from the Mods list or the in-game config menu, then look for the main toggle that controls whether the confirmation dialog appears at all. Switch it off and save. From that point on, pressing your drop key will drop items immediately, exactly like vanilla Minecraft.
Narrowing Instead of Disabling
Before you disable everything, check the config for separate toggles. Many setups let you keep protection for risky cases (dropping into lava, the void, or handing items to another player) while skipping the prompt for ordinary ground drops. If those options exist in your config, leave them on and only disable the general drop confirmation. That way you keep the safety net where it actually matters and remove the annoyance everywhere else.
If the Dialog Still Appears
Make sure you saved the config and, if your mod loader caches settings, restart the game once. If a server you play on enforces its own settings, the server side may override your local choice, so test in a singleplayer world first to confirm the toggle is working.