Mouse buttons stopped working after a browser update?

Your mouse buttons stopped responding, or some clicks no longer work, after your browser updated. That timing is a useful clue, but it does not prove the mouse is broken. First check whether the problem happens only in the browser or across the whole computer.

Use TooLab's Test Everything for a broad check, then the focused Mouse Test to see which buttons register.

Check which mouse buttons respond

1. Open Test Everything and follow its steps. Note whether the mouse test reports a problem.
2. Open the Mouse Test. Click each mouse button, including the wheel button and any side buttons, and check whether the test detects each action.
3. Try the same buttons in another browser page and in a non-browser app, such as your computer's file manager. If only one website is affected, test a different page too.
4. If you use a wireless mouse, test it with a fresh battery or connect its receiver to another USB port. For Bluetooth, reconnect the mouse before testing again.

Test in the same way each time, with the mouse connected directly to the computer if possible. A dock, hub, remote desktop, or mouse customization app can add another source of trouble.

What the result means

Every button registers in the Mouse Test

The mouse can send button input to the browser. If clicks fail only in one site or app, the mouse itself is less likely to be the cause. Check that site's controls, reload it, and try another browser profile or browser.

One button never registers

If the same button fails in the test and in other apps, check the mouse's button assignment and connection. Side buttons may be assigned to browser navigation by mouse software, so a button that goes back a page may be working as configured rather than failing.

Buttons work outside the browser, but not in it

This points to the browser, an extension, or the particular page. A browser update can change how an extension or page behaves, but ordinary mouse clicks do not need a special browser permission. Try a clean browser session before changing system settings.

Several buttons fail everywhere

Look at the mouse connection, operating system settings, and any button-remapping software. If reconnecting the mouse does not help and the same buttons fail on another computer, a worn switch or damaged cable is more likely.

How to fix it

1. Reconnect the mouse. Turn a wireless mouse off and on, replace its battery, or unplug and reconnect its receiver. For a wired mouse, try another USB port and avoid a hub for this check.
2. Check the primary button setting. In Windows 11, open Settings › Bluetooth & devices › Mouse and check Primary mouse button. On macOS, open System Settings › Mouse and check the secondary-click setting. These options can make a familiar button behave differently, though they usually do not disable every button.
3. Turn off mouse extensions or gestures temporarily. Disable browser extensions that change navigation, gestures, or page behavior, then reload the page. If the buttons work afterward, enable extensions one at a time to find which one is interfering.
4. Try a private window or a fresh browser profile. This helps separate a browser profile problem from a computer-wide one. Private windows may still allow extensions that you have explicitly enabled there, so check the extension list if the issue remains.
5. Check mouse button assignments. Open the mouse manufacturer's settings app, if you have one, and review its profile for the affected program. Restore a default profile or assign the button a basic action temporarily. Also check whether gaming or productivity software has a profile that activates only in the browser.
6. Restart the browser and computer. Save your work first. A full restart can clear a stuck browser process or reconnect a device after an update.
7. Check for another browser update. Install available updates from the browser's own update settings, then test again. Avoid using an old browser version as a permanent fix because it may miss security updates.

If only one site still fails, clear that site's stored data only if needed. This can sign you out or remove local preferences for that site, so try reloading and a clean profile first.

When the mouse hardware may be faulty

Test the mouse on another computer, or connect a different mouse to the same computer. If the same physical button fails on multiple computers, while another mouse works normally, the button switch is probably worn or damaged. Check the warranty before opening the mouse. If it is out of warranty, replacing an inexpensive mouse is often more practical than repairing a failed switch.

Why the browser update may be a coincidence

A browser page can respond to ordinary clicks, but specialized mouse behavior can depend on the page, browser extensions, or software that remaps buttons. A side button may trigger the browser's Back or Forward action, and an extension can alter that behavior. The Mouse Test helps establish whether the browser receives button input; it cannot prove that every app or game interprets the button the same way.

Keep the Mouse Test open while you compare the affected button in another browser and a desktop app, so you can see where its behavior changes.