Firefox&Xwindows question

Is there any way to clear a textbox by say right-clicking it and selecting "Clear" from the menu?

Right now, to delete, I have to select the whole text and press "Backspace" or "Delete" and that destroys my clipboard.

>>8
It shouldn't depend on an application to get a textbox right. It's because of the half-assed way you copy and paste in X.

>>9
XFree86, or other X implementations.