Better Browsers for Text & Form Handling?

Dan Warne asks: "I work as a web content administrator for one of the big newspapers in Australia. The front end of our content manager is browser-form based. Yet browsers all have horrible text editing features; neither Mozilla nor IE support search-and-replace, something desperately needed for anyone who works with a lot of form content. Aside from using a standalone text editor, what software out there provides a better browser-based solution for people who work with text in web forms a lot?"