Known Johnson

January 24, 2006

This document contains no data

Filed under: General — Tom @ 10:04 am
no data

If you’re a Firefox user (and why wouldn’t you be?!) you’re probably very used to seeing the subject line in an irritating popup window when you go to some webpages. I figured out a long time ago that it’s likely related to ad-blocking by the browser, but I never could understand why I’d care enough about it that I need a popup that I need to divert my attention from in order to continue using the browser. Uh, hello? Isn’t that the point of using Firefox, that we don’t have to deal with popup ad windows? Sure, it took care of the ads, but replaced them with something the user can’t even ignore.

I finally decided to do a little research and came across a simple solution (found here):

In the Firefox address bar, type:


Scroll down in the window to a setting called “browser.xul.error_pages.enabled.” Double-click the line anywhere and set it to true (the line will display in bold now as well.)

When you go to a page that would normally have caused this popup, whatever was causing the problem will now display this message:

no no data

And you can happily ignore any blocked content without any interaction with your browser – the way it should be, but for whatever reason Mozilla decided it shouldn’t.



  1. how mine was already set to true i have no idea!

    Comment by marc — January 26, 2006 @ 2:56 am | Reply

  2. I LOVE YOU!!!!!!!

    Comment by Justin — March 19, 2006 @ 4:36 pm | Reply

  3. How on earth did you learn to do such clever stuff? I am in awe!

    Comment by Jack — August 23, 2006 @ 5:41 pm | Reply

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