I think that "Find" dialog (ctrl+F) is forgotten in the past!
You can add some additional features like:
Find previous (please!!! I have to search from the beginning each time I accidentally press next!
)
Save Results: Everything that matches the search query can be saved in a txt for future usage.
Missing Icon on top left corner (I don't know if it should have)
Search files / directories only option
Show only results to ftp window: Hide non matching files or directories from the ftp window.
You might like some of them