A borwser for development purposes?

[adamscott421]

I just saw that safari 5 can change it's user agent to other browsers for development purposes. That's pretty cool but does anyone know of a browser that would be able to also render content as mulitple browsers, so i could select IE and see what ie would see or select firefox and see how it looks there.

[Fang]

Most browsers allow you to change the user agent.
Lunascape (http://www.lunascape.tv/) has a triple layout engine.

[mjbeaumont]

You can use Firefox and install an application called "IE Tab." You'll be able to switch between the two using a context menu.

[eenglish]

If you have or get Expression from Microsoft they have a multiple browser option built in. Sweet as heck.

[808geek]

I have tried Lunascape 6 Browser - it does have triple engines:
Trident - IE
Gecko - FF
Webkit - Chrome, Safari
Seems to work, but haven't spent time in fully testing it yet.
It is convenient.