This neat little trick comes by way of Gabe Weatherhead (Macdrifter):
Here’s a little Safari trick that is just gold. Hit
Shift-⌘-\to enter the Safari “Show all tabs” mode. From there it’s just a simple
⌘-Fto search the open tabs.
I didn’t know about this, but I’ll be putting it to use now. Gabe also points out that this search will show results in the open tabs list for your other devices as well. I don’t know if this works on the iPad and I’m not around mine to test it at the moment but, if not, I’d like to see it added.