Setting .innerHTML

Question

I am developing a Firefox extension which need to change some values on a specific <div>.

I try to inject this into the DOM by tying this into the URL bar:

javascript:document.getElementById('c4d9b2819218742680841961_input').innerHTML = 'foo'

The value do change but then the whole page become blank quickly expect the <div>.

How can I avoid this? Thanks.

Answer 1

It is acting on the return value for of your code. Wrapping it in a void() will suppress this. This should work>

javascript:void(document.getElementById('c4d9b2819218742680841961_input').innerHTML = 'foo')