Basically for the past few days I've been looking for a way to change the default Mouse shortcuts in Firefox but to no avail. I want to get rid of the "Alt + Click" => Save As bind, as I often hold down alt to Alt Tab while web surfing and end up unintentionally downloading a bunch of webpages to my desktop that I don't want, and its gotten quite annoying.

I've searched everywhere and have only been able to find KeyConfig, which only works on keyboard shortcuts and doesn't include Mouse Click combinations. Does anyone know of an extension or way in the about:config to disable this bind or had any experience with this in the past?