CraigsFlagger Pro Installation Tips: You are currently running ##browser_info##. Our software has been designed to work with Firefox 🦊 Firefox 42 64-bit or Firefox 42 32-bit . If you need to update your Firefox, please do so from our link. ONLY Not sure if you have installed our software? Click here to see your software turn on automatically from inside of the 🦊 Firefox 42 64-bit or Firefox 42 32-bit when you visit Craigslist. Software installed, but isn’t showing? If you are re-installing due to an update or upgrade, there is no need to uninstall the old version. Install CraigsFlagger Pro right over top of the old version again.