Firefox tip: keep popups resizable

Firefox javascript settings

One of the first things I do when I install Firefox is go to the advanced javascript settings and unselect “Move or resize existing windows”. There are tons of pesky sites out there that resize your browser window through irritating scripts, and this keep them from doing so quite effectively. As with all technologies though, there are occasional sites that use similar scripts for good. Some open popup windows for images and adjust their sizes to fit the content for instance. With the javascript setting I described above, this leaves me with a non-resizable popup of the wrong size. Usually a very small one with large contents. Grrr…

I found today that there’s also a setting you can change to keep all windows resizable. That way you can at least drag the adjust the size manually. Here’s how to go about it.

  1. Type ‘about:config’ in the address bar to get to the configuration screen.
  2. In the search box, type ‘dom.disable_window_open_feature.resizable’.
  3. This will filter the huge list of settings down to only the one you’ll need to change.
  4. Right click the only line now left and select ‘toggle’ to set it to ‘true’.

Have fun!

Roy | October 25, 2007 | English,Software | Comments (5)
Tags: , , ,


  1. Hé, good tip!
    Thank you.

    Comment by Herbert — December 20, 2007 @ 11:43 pm

  2. Nice, I have been through this a lot of times. Excellent Tip!

    Comment by Salman — January 17, 2008 @ 8:00 pm

  3. Great little tip – thank you – I’ll be sure to try this out when I get home 🙂

    Comment by Chris — January 23, 2008 @ 1:45 pm

  4. Great Tip.
    It helped me to know that Firefox 3 has every window always resizable by default and setting resizable=”no” in method has no effect on the resizing nature of the window unless you follow the tip.

    Ritesh Jagga

    Comment by Ritesh Jagga — July 22, 2008 @ 12:04 pm

  5. THANKS lots! These instructions were easy to find (I love Google!), and even easier to follow. A few windows have been driving me bonkers for quite a while now, and this has straightened things out.

    Comment by Sherry — August 2, 2008 @ 3:37 am