Supressing browser generated alert boxes using Javascript

Question

I want to stop an alert box being popped up by the browser using Javascript, as I find it bothersome. Is there any way to do this? Perhaps an addon, or script?

Answer 1

One can interpret the question in two ways:

1.I want to use javascript to stop alert boxes

You can override the alert function so it'll do nothing:

window.alert = function () {}

Unfortunately, the usual fiend (IE) will not accept this, as alert is special voodoo-magic to it and not a regular function.

2.I want to stop alert boxes spawned by javascript

You can't turn off specific features. You either disable javascript, or deal with it.

Answer 2

in Firefox and Chrome this option is built in (after the first popup, if consecutive popups are your concern)

or if you use FireFox you can install greasemonkey and this user script

OR if you are the webpage owner and you want to disable alerts on your own site (for what reason I don't know)

window.alert = function(){}; will likely do it (not sure about IE.. but thats a start).