A couple months ago I finally gave up my vintage bondi-blue puck mouse. I know many hated it, but I loved it. When I got my G4 700 MHz flatpanel iMac, I kept the puck mouse instead of the newer mouse. And then when I got my 2 GHz Intel Core 2 iMac, I still kept the puck mouse and left the 'mighty mouse' in the wrapper.
A couple months ago, after using the 'mighty mouse' at work for a while, I switched at home. It reads movement far more accurately, the left-right clicks are great, and the scroll/click ball at the middle is fantastic.
But the far left-right (side) buttons are a complete nightmare. I absolutely hate them. I'm constantly pressing them by accident. I had hoped that over time I'd get used to it and learn to work with them, but two months of using it hasn't changed a thing. I am constantly -- literally every few minutes -- getting unwanted, unintended clicks from the side buttons.
I want and need to disable them entirely.
I went to the mouse settings in System Preferences and switched those button settings to 'off', but I still get unwanted clicks from the buttons a lot.
The worst problem is in Firefox. Clicking the side buttons causes Firefox to load the previous page from your browsing history, losing anything you were doing on the current page. I have lost countless -- probably around 100 -- emails and messages I was writing because an unwanted click took me away from the page I was composing on. The side button problems are annoying in other applications, but in Firefox they are a bloodpressure-boosting nightmare.
How do I disable the mighty mouse's two side-click buttons entirely?