I'm having trouble installing fireftp on windows 7. Firefox could not install the file at http://releases.mozilla.org/pub/mozilla.org/addons/684/fireftp-1.0.9-fx.xpi because: Not a valid install package -207
Here is the error message I got when I tried to install fireftp: Firefox could not install the file at http://releases.mozilla.org/pub/mozilla.org/addons/684/fireftp-1.0.9-fx.xpi because: Not a valid install package -207