Rated 2 out of 5 stars
This used to be one of my top 5 add-ons, but with this additional 'Clear Now' popup it's gone from simple to obnoxiously inconvenient.
emarell, below, said it best: just do the job without the additional clicking. If you feel that there are users out there who don't know what they are clearing, then give the rest of us an option to skip that that extra step.
About the Clear recent History Dialog
At the moment there is no way to suppress the "Clear Recent History" dialog in Firefox 3.5 and 3.5.1. In previous versions, there was a option that you could set that would prevent said related dialog from showing up whenever you would "Clear Private Data", but that option has been completely removed in present Firefox 3.5.x versions by Mozilla and not by me. I will look into finding a way to suppress the dialog if possible. Thank you for using my Add-on.