Make a file in notepad called USER.JS
Add the following (you don't have to have all of them):
// More DOM/JavaScript options
// Make sure all pop-up windows are resizable:
user_pref("dom.disable_window_open_feature.resizable", true);
// Make sure all pop-up windows are minimizable:
user_pref("dom.disable_window_open_feature.minimizable", true);
// Always display the menu in pop-up windows:
user_pref("dom.disable_window_open_feature.menubar", true);
// Always display the Navigation Toolbar in pop-up windows:
user_pref("dom.disable_window_open_feature.location", true);
// Prevent sites from disabling scrollbars:
user_pref("dom.disable_window_open_feature.scrollbars", true);
// Click on throbber to go to website:
user_pref("browser.throbber.url", "
http://forums.overclockers.co.uk/index.php");
Save it to your profile folder, eg:
C:\Documents and Settings\name\Application Data\Mozilla\Firefox\Profiles\qmlcvy6i.name
If you want to stop all popup windows resizing Firefox, do the following:
Type about:config in the address bar
Search for resize
Modify dom.disable_window_move_resize to "true"