Gaming Mouse Button Test — All Buttons

The browser's MouseEvent API can detect buttons 0–4: left click (button 0), middle click (button 1), right click (button 2), back side button (button 3), and forward side button (button 4). This covers all buttons on most 5-button gaming mice. Additional buttons — DPI toggles, profile switches, and extra macro buttons — send customizable input through manufacturer software (Logitech G Hub, Razer Synapse) rather than standard mouse events, and cannot be detected by browser-based tools. To test those, use your manufacturer's software diagnostic tool.

Gaming mouse side buttons most commonly fail to register in browser tests because they have been remapped in your mouse's software. Logitech G Hub, Razer Synapse, SteelSeries GG, and Corsair iCUE all allow side buttons to be bound to keyboard shortcuts, media controls, or application actions. When remapped, the button sends a keyboard event to the OS, not a MouseEvent.button 3 or 4 — and this tester only detects MouseEvent signals. Open your mouse software and set both side buttons to 'Browser Forward' and 'Browser Back' (or the native mouse button equivalent) to restore standard MouseEvent detection.

The DPI shift button on gaming mice does not send a standard mouse event to the operating system — it communicates directly with the mouse firmware to change the sensor's sensitivity setting. It cannot be detected by any browser-based tool. To verify your DPI button works, open your manufacturer's software (Logitech G Hub, Razer Synapse, etc.) and check if the DPI indicator changes when you press the button. Alternatively, open a free DPI checker like our DPI Checker tool and move the mouse a fixed distance before and after pressing the DPI button — a working DPI button produces a measurably different cursor displacement per inch.

In first-person shooters, the most critical buttons are: left click (fire), right click (aim down sights / ADS), and side buttons (commonly bound to push-to-talk, melee, or ability activation). A responsive, low-debounce left click is the highest-priority: every missed left-click register is a missed shot. Right-click must be reliable for ADS engagement. Side buttons that fail intermittently cause missed callout communications or melee failures at critical moments. A high polling rate (1000Hz minimum, 4000–8000Hz for competitive play) ensures all button events are reported to the game engine with minimal latency.

No — browser back and forward navigation (the default function of buttons 3 and 4) are often restricted or captured by single-page applications and gaming platforms. Many game launchers (Steam, Epic Games Launcher) also intercept side button events at the application level. This test tool explicitly suppresses the default navigation behavior inside the test zone so side buttons register as button events instead of triggering browser history navigation. If side buttons work here but not on other sites, that is expected behavior — most sites allow the browser to handle the default navigation action.

Mouse firmware updates occasionally fix button registration bugs, improve debounce handling, or add support for new polling rate modes. Signs that a firmware update may help: buttons that work inconsistently across different games or software, side buttons that stopped registering after a Windows or macOS update, or DPI steps that feel inaccurate. Update firmware through your manufacturer's software: Logitech G Hub → Device Settings → Update, Razer Synapse → Devices → Firmware, SteelSeries GG → Settings → Firmware. Always back up your profile settings before updating, as some firmware updates reset button mappings.