Any program with a lot of popularity lead to "the bad guys" paying more attention to it when it comes to plotting their misdeeds, that is why Firefox receives more attacks each day. Even though no software is error-free, the truth is that some parts are more prone to generating security holes than others, and since the vulnerable parts of Firefox are well known, FFHardener tries to offer some order and conceal the problems that the browser by Mozilla may have.
Take security to the next level in Firefox
Once FFHardener has been downloaded, its functioning depends simply on pressing the only button that is shown in its interface, and that will prop up the weak points of Firefox. Basically, its action lines consist of making sure that no R4 algorithm is used in the SSL connections because it is an insecure encryption, furthermore it forces the use of 64 or 128-bit algorithms.