It is true that a system-wide implementation doesn’t have easy access to browser specific data. Looking over the commands of Devo, though there are no built in commands using that information, granted someone could write them.

With Firefox 3’s new address bar, I think they manage searching through that data and pulling up pages in your history very simple and elegant.

I’ll definitely give Quicksilver a try. I just installed Launchy (it’s supposed to be the windows equivalent of Quicksilver) and I really like it.

Thanks for writing about my extension. :)

I designed Devo based on Enso and it is only meant to support Firefox (so I really don’t want my context to be system-wide). This is mostly because Enso lacks the ability to do many things that a Firefox extension can like getting easy access to bookmarks and Firefox history. Plus, firefox extensions can run on multiple platforms.

Anyway, I use Quicksilver for controlling the rest of my computer. You should try it if you have a Mac. It’s totally awesome but its based on a different paradigm compared to Enso.