Mouse buttons and the Firefox browser

[anotherwindowsuser]

I bought a new mouse and the only problem I have is they designed it with buttons near the top of the mouse and I keep on forgetting they are there, unfortunately this means when I go to pick up my mouse which I often do as I use it on different places, I then find I am clicking the button accidentally which makes it whilst in a Firefox web browser at least, give it the command to go back a page, is there a way I can disable this either in the browser of getting better mouse software? Thanks in advance

 

[anotherwindowsuser]

I solved the problem, just needed to adjust this setting

 

[lucylloo]

oh thank u.. It helps many.