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Here is quick tip to make any window and frame in Mozilla Firefox to be resizable, even it has been disabled by the webmaster.

1. Open a new window/tab, goto: about:config
2. Change the value of following preference names to “true“(double click to change value) :
   dom.disable_window_open_feature.resizable
   layout.frames.force_resizability
3. Done. You may need to restart Firefox to make the changes take effect.

The former preference make any window become resizable, the later is for frame.

Read also:

• Make Old Extensions Work on Firefox 2
• Weekly Highlights (Week 26, 2005)
• 5 Year Old Mozilla Firefox Tops Vulnerability List
• Multiple Browsers Frame Injection Vulnerability
• Mr Tech’s Local Install – Make Old Firefox Extensions Compatible