Originally Posted by ericshliao
IMHO, it will be VERY useful for most mobile devices and ebook device, and for some lightweight desktops or laptops, since it's nearly impossible or burdensome to install a Firefox on those devices.
Okay I see.
I don't know what the problem causes installing Firefox on such devices. What I can say is, that if you install XULRunner, you install 90% (probably more) of Firefox. The reason is, that XULRunner and Firefox both include the Mozilla Gecko engine which does all the work. Firefox is just a frontend to Gecko written in XUL. So in my opinion it doesn't make a big difference if you install Firefox or XULRunner.