Common symptoms
- The pointer skips, freezes, or does not move
- One button or the wheel works inconsistently
- The mouse works in one application but not another
Possible causes
- Application focus, shortcut, overlay, or button remapping
- Dirty sensor, reflective surface, weak battery, or wireless interference
- Worn switch, damaged cable, receiver, adapter, or USB port
- Operating-system accessibility, driver, or power-saving behavior
How to diagnose it
- Run the DeviceTriage Mouse Test and check movement, every button, and the wheel separately
- Compare a plain operating-system app and a second current browser
- Try a clean matte surface, reconnect the receiver, and check battery state
- Compare another port or mouse without changing several variables at once
Solutions to try
- Restore application button mappings and close overlays that capture input
- Use a suitable surface and the maker's safe cleaning method
- Recharge or replace the battery and reduce receiver interference
- Update official system or manufacturer drivers when the issue follows the device
- Replace or service hardware only after the symptom follows the mouse across devices
The first 10-minute diagnosis
- Test movement, primary, secondary, middle, and wheel events separately in the Mouse Test.
- Compare a simple operating-system app so you know whether the symptom is browser-only.
- Use a clean matte surface and check battery, cable, receiver, adapter, and port.
- Change one variable at a time and record which device, port, or app the fault follows.
Decision path by result
Only one app misses clicksCheck focus, overlays, shortcut capture, and button mappings in that app.
The pointer skips everywherePrioritize surface, sensor, wireless signal, battery, cable, and system load.
The fault follows one USB portInspect the port, hub, power management, and another low-power USB device.
The fault follows the mouseCompare on another device before considering switch, cable, receiver, or sensor service.
Platform-specific checks
Windows
Review mouse button assignments, pointer enhancement, USB power saving, Bluetooth state, and manufacturer software.
macOS
Compare tracking, secondary click, accessibility controls, Bluetooth, and any third-party remapping utility.
Mobile and tablets
External mouse support and button mappings vary. Separate touch, stylus, trackpad, and mouse pointer behavior.
What not to do first
- Do not install unknown driver-updater bundles.
- Do not spray cleaner into switches or openings.
- Do not conclude that a mouse is broken from one browser-reserved shortcut.
When to move beyond a browser test
- Seek service when the same physical button or movement fault follows the mouse across devices.
- Investigate the operating system when several pointing devices fail on the same device.
Last technical review: 2026-09-03
Frequently asked questions
Can a browser measure exact mouse polling rate?
Not reliably. Browser scheduling, event coalescing, display refresh, and power state affect delivery, so this is a functional event test rather than a calibrated rate test.
Why does a side button work outside the browser but not here?
The operating system, browser navigation, an extension, or application mapping may intercept it before the page receives an event.