Improved Find-in-this-page?

humbug <[email protected]>
Newsgroups gmane.comp.mozilla.wishlist
Organization http://groups.google.com
Message-ID <ff5c8387-613c-4d00-9fe7-fd19da23375a@t11g2000yqg.googlegroups.com> 
I want to use "search this page" feature with regular expressions or
at least something more flexible than is currently available. Maybe
there is an extension which can do this, but I haven't found one yet.
Anyone recommend something else to do this?
thanks
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