They require KeePassHttp, a KeePass plugin to expose password entries securely (256bit AES/CBC) over HTTP.
Currently, the documentation of PassIFox is not up-to-date! Support is always welcome.
If you open an issue, always give us the following information:
PassIFox & ChromeIPass Copyright © 2010-2017 Perry Nguyen
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.