This is probably an annoyance for all those that use keyboard CTRL commands (like, CTRL-C and CTRL-V) and accidentally keep hitting CTRL + mouse scroll wheel, which zooms in and out, or enlarges and decreases text size in your browser...
Here's how to disable that in firefox...
In your address bar, type in
Change the value to "0"
Restart your browser, and you're all set.
Nothing available at the time of this writing...