Many people fight about browsers. When Opera lovers list features that Firefox doesn't have, Firefox defenders usually say that the features can be implemented as plugins.

I'm just guessing, but I believe that the following features cannot be plugins. This list is therefore ultimate proof that Opera is a splendid internet navigator, and Firefox just a poor, sloppy follower.

• a "paste-and-go" command

• MDI: aka an interface with multiple windows, each of which can be resized and positioned within the browser window; you can place two windows side-by-side, using the first to track the downloads you've made in the second

• a feature that starts downloading a clicked file while asking you what to do with the file, thus usually finishing downloads before you've even chosen where to put them

• a feature that starts logging into a page before asking you if you want to save the password, thus allowing you to avert storing mis-typed user account names or passwords in the password cache

• single-key shortcuts, activating features without having to hold Shift or CTRL