layout.css.visited_links_enabled = false

Note: this works only in Firefox 3.5 (Beta/Preview).

By the way, if you are using Firefox 3.5 with layout.css.visited_links_enabled = false and you still want some visual clue for visited links, try my Link Status extension! (How pushy....)

It seems they have added "X-UA-Compatible: IE=EmulateIE7" to the HTTP header of the pages on microsoft.com. Why is microsoft.com on the Compatibility View list, then?

• Does it mean "X-UA-Compatible: IE=EmulateIE7" was not there yet when the IE team generated the current version of the Compatibility View list?
• Does it mean they forgot to add "X-UA-Compatible: IE=EmulateIE7" to some pages?
• There is a small difference between adding "X-UA-Compatible: IE=EmulateIE7" and being listed on the Compatibility View list. Does it mean adding "X-UA-Compatible: IE=EmulateIE7" was not enough to render microsoft.com correctly on IE 8?

Any ideas?