Just FYI, but Opera does search the full page contents of every tab when using the tab search located next to the minimize button. The browser seems to be one of the only ones innovating right now, at least for power users.
Edit: Now if only they'd fix their bookmark system!
Maybe I should check Opera out again, I used to use it back in the day and it had innovative features back then.
I forget what they called it but you could link one page to another, so I could have an index page open on one monitor and when you clicked on links in that, it would open those links in tabs in a window I had on another monitor.
Edit: Now if only they'd fix their bookmark system!