Wish I'd known this earlier... might still be able to recover. And yes this is a situation with Mozilla 1.2b

All you have to do is go to a web site that automatically resizes the window to full screen size. Normally, these web sites are a pain because the new window takes up the whole screen. Just type cmd+shift+L to open the location window and type in the name of a site that resizes the window (I don't know any off hand).

Alternatively, you could make your own HTML file that resizes the window and open it with Mozilla. The new window and all others after that will be just fine.

I have had this problem for a while and the final solution was to remove localstore.rdf entirely. To test your solution I maximized the Window, got the pixel width window and went to edit localstore.rdf. I found several lines with height and width as arguments (some at the beginning of the file, some after the bookmarks, some at the very end).I tried changing the one that appeared to have value 0 and didn't work (at the very end). The only solution again, was to remove localstore.rdf entirely. Any ideas?

Do a search for
<RDF:Description about="chrome://navigator/content/navigator.xul#main-window"

modify the numbers there..

and it happens with the currently 1.2b as well

this is MUCH easier than finding a javascript website that'll open your window fullscreen, and guess what, when you do find one, that doesn't fix the problem!! lol

Haven't used Moz for weeks because of this problem, your solution worked perfectly.

Note that my path to the file was different than the original post

~/Library/Mozilla/Profiles/default/su13c4mp.slt/localstore.rdf

tell application "Mozilla" to set zoomed of front window to true

This is the best solution so far....Works great! Thanks!

I have a bookmark labelled "Resize" in my Bookmarks menu, with the link

javascript:window.resizeTo(200,300)

I just picked some random numbers that make it big enough for me to resize it back to normal by clicking + again or using the resize handle.

Awesome....Thanks for that great hint.

I know have that bookmarked in my tool bar. In fact I reset it to "javascript:window.resizeTo(1100,680)" which restores window to full size of screen (iMac).