Grey bar (third one down) - replaces existing web page in browser display
(Newsgroup link excepted, as if it works, your newsreader application wil fire up, normally this is not your web browser)
Why the difference?
- Accessibilty issues - thowing up new windows can confuse some helper apps
- System Resources - you open a new window, memory is allocated .. close that window, not all that allocated memory is freed up, eventually causing some systems to crash
- User Control - some would like new windows, some would like to use Tabbed browsing (which is usually trashed by forcing a new window to open), some folks get confused when a 'new' window opens up over the top of the existing window and the "Back" button doesn't work ..
- Matches the actions of the existing items in the grey bar
- Justifying the hacking of more than one section of code
