Build ID: just pulled Although we remove the Maximize button for dialog windows (e.g. Preferences), they are still maximizable in win32 by right clicking on the titlebar and choosing Maximize from the context menu. We must not be setting some flag properly, because if they were truly not maximable, the item would be disabled. Future me!
A note (for the future): the Maximize item in that context menu *is* disabled on Win2k, but not on Win98 or WinNT4. (Perhaps this is a bug in the win32 API).
This isn't for all Dialogs, though. The Open Web Location, Find On This Page, Password Manager, etc. all have only Move and Close in the context menu. Is this specific to the Prefs dialog? Perhaps it's a carry-over from when it was being played around that this window could be minimized...
hrm...fwiw, none of those dialogs are resizable, whereas the prefs window is.
Weird. The prefs window is declared with a class="dialog", and so are the other ones (eg. downloadProgress.xul). Resummarizing to be only the prefs dialog.
Fixed now that Ben made the dialog non-resizable. This is good enough for me, if someone wants to reopen to reinvestigate the original problem they can...