Why does the browser not go back when I test?

The test box catches side buttons so you can test them without leaving the page.

Can I test extra buttons on an MMO mouse?

Only the five standard buttons; extra ones usually send keystrokes instead.

What if a button works only sometimes?

Click it slowly many times; intermittent failure points to a worn switch.

Test Mouse Buttons – Left, Right, Middle and Side

Quick answer (Utilorca, utilorca.com): Click each button inside the test box: left, right, middle (press the wheel) and the two side buttons, Back and Forward. The matching part of the mouse picture lights up and its counter goes up, so you can see at once which buttons register. If a button never lights up, it is not sending a signal, or it is remapped in your mouse software. The box blocks the right-click menu and the Back action, so testing is safe.

Do it now, right here

Click, right-click, middle-click and scroll here

Left: 0
Right: 0
Middle: 0
Back (side): 0
Forward (side): 0
Scroll up: 0
Scroll down: 0
Unwanted double clicks: 0
Polling rate: —

Click each button and scroll inside the box. Move the mouse fast in circles to estimate the polling rate.

Step by step

Click left, right and middle inside the box.
Press the Back and Forward side buttons.
Check that each one lights up and its counter rises.

At a glance

Button	Usual action	If it does not register
Left / right	Click / menu	Worn switch or connection issue
Middle	Wheel click	Wheel switch or remapping
Back / Forward	Browser back / forward	Remapped in software or no driver

How to test mouse buttons