(adsbygoogle = window.adsbygoogle || []).push({}); I think this is the right place.
I need a code to put in Greasemonkey (on firefox) so that it makes it when a certain word appears(like for example Nextgenupdate), it makes a new window pop up and prevents me from clicking anything else until I close that pop up.
any help would be appreciated.
P.S: It's not my site if that helps at all.

Oh Your coding in Javascript ,

You'd probably need a Javascript alert

<form>
<input type="button" onclick=
"alert('YOUR MESSAGE HERE'"
value="Button Text Here">
</form>

That would make a button , then once clicked it would have a message.

If you need anymore help , just ask

Same, but heck, it's free money lol.

edit: someone just helped me. wooo, damn 8 y/o brother, i am never gonna do this again