A practical mouse button and double-click testing checklist
Start with the mouse button test, then run the double-click, scroll wheel and hold-drag checks. A single page can show a symptom; a repeatable sequence helps you decide whether the problem follows the mouse, the port or the computer.
1. Test left, right and side buttons at a normal pace
Click every button 20 times. Missing clicks, duplicate clicks and inconsistent intervals are more useful than one very fast burst. Record which physical button fails and whether the browser receives a different code.
2. Match the tool to the mouse symptom
Use the double-click test for chatter, scroll wheel test for skipped direction, polling rate test for movement frequency and hold-drag test for button dropouts. Use the DPI page when pointer sensitivity feels different after a settings change.
3. Repeat the mouse test across environments
Swap USB ports, try another browser and retest on another computer. Keep the same test order, surface and connection mode so the results can be compared.
What the browser can and cannot measure
These tools observe standard web events. They are excellent for user-visible behavior, but firmware-level debounce, USB report timing and wireless radio errors may require a desktop diagnostic utility.