User Agent: Mozilla/5.0 (X11; Linux i686; rv:19.0) Gecko/20130104 Firefox/19.0 Iceweasel/19.0a2 Build ID: 20130104042023 Steps to reproduce: Browsed http://www.land.moi.gov.tw/chhtml/landvalue.asp?cid=100 whereupon greeted by an alert() message which I felt I wanted to see a little bigger, so hit CTRL++++++, And even refreshed the page too. Actual results: Nothing. Firefox assumes a one-size fits all for alert() character sizes with the user helpless to change things no matter what he presses. Expected results: The text of the alert message should zoom too. It is clearly the only thing on the screen, everything else being greyed-out until he hits "OK". There is nothing else he can do until he hits OK or ESC, so why can't he be allowed to zoom the text with CTRL+++++ ?!

Continual pressing of CTRL+++++ just over zooms the greyed out background, meaning the user not only cannot zoom the alert message, he is greeted with a messed up page when he finally presses OK.

Seems like alerts are working in browser window contest, so can't be zoomed in obvious way. Not sure, what component is right for this request..

Isn't this a duplicate of bug 753108?