cor-el referred me to the bugzilla thread. Following that thread, I realized that the 'advanced' settings had already addressed the issue, but the coders went ahead and disabled the javascript resizeto() and moveto() functions, while checking the opener and other properties to determine the "main" window.

I agree that the original 'bug' was bogus, and the advanced setting to disable resizing could have become the default, but still easily changed.

So bad, Firefox 8 blocks popup from bookmarklets, Firefox isn't suck enough ? I'm a Firefox fan, but now I think I have to move to Opera.

Quote: "Firefox 8 blocks popup from bookmarklets".

I also find that quit inconvenient.
I now need to enable the pop-up blocker to use bookmarklets from www.squarefree.com to display CSS and JS files and ones that I made myself.
Well at least that still works, a lot of other bookmarklet have stopped working and you now need to use the Scratchpad to run JS code.

Now I wonder if I get it right:

So a window is not allowed to be resized by itself, as then it is considered to be the "main window".

Another window that must have created this window must do it instead.

So therefore my popup that shows an image may not be resized simply by itself after getting the image width and height. So a solution would be to write a script that creates a <div> with absolute position that floats ontop of normal content that is removed on click. This <div> can then be changed in size as desired.

Basically mozilla found that the functionality as provided by window.resizeTo should be removed entirely. I wonder what will become of this, if FF remains alone on this point of view I sure hope they will reconsider. If not I will either have to recode my popups into emerging <div>'s that float, or simply wait untill users find other browsers more suited to browse the web.