User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b4) Gecko/20050804 Firefox/1.0+ Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b4) Gecko/20050804 Firefox/1.0+ Open the firefox > Preferences dialog. From the Downloads tab open the view and edit actions dialog. This dialog / window is independent (?). You can access/close the preferences dialog and even the firefox window. [In my system at this stage firefox eats up c. 30M of memory. - that's another issue] So, why can't these windows (extensions/themes/Actions on files) given a dependent state (modal state ?) like the dialogs, in normal applications. As the case of Download Manager is, it might be right to keep its current behaviour since, some user would like to close the main window and keep only his downloads continuing. [It might not be a bug but may a necessary enhancement.] Reproducible: Always Steps to Reproduce: As above.
These windows don't exist anymore in modern Firefox.