Search-and-replace text in Firefox

[Dan Jenkins]

Ben Scott wrote:
>   Anyone know of a Firefox extension or Greasemonkey userscript which
> provides an ad hoc "search-and-replace text" feature?  I frequently
> find myself wanting to do this within an HTML form's TEXTAREA box, or
> even across multiple text fields.

Xinha WISIWIG Editor
https://addons.mozilla.org/en-US/firefox/addon/1449

Right click in a TextArea and choose Open Xinha Here (probably has a 
shortcut key too). Just found it. I guess my Google-Fu was stronger today.

Works fairly well in my admittedly short testing. Does a lot more than 
just find and replace.