Each new release of Mozilla Firefox browser software seems to cause a conflict with my Rapport Trusteer security software. This software functions very similar to a VPN, creating a secure tunnel between my PC and my bank. My bank (USAA) provided this software, and I trust it unconditionally. But each new Firefox update wipes out Trusteer's functionality, causing me to revert to previous releases of Firefox in order to maintain this secure banking ability. I know compatibility testing cannot possibly be done on all applications, but common sense seems to dictate that someone at Mozilla would take a closer look at compatibility wiht security applications such as Rapport Trusteer. This isn't the first time this has happened, not the first time I have written you about this incompatibility.