about the security of the underlying encryption and such.

I don't know IF it helos, but have a look under

B - Mozilla Firefox

Mozilla Firefox supports many features of the same features as Internet Explorer, with the exception of ActiveX and the Security Zone model. Mozilla Firefox does have the underlying support for configurable security policies (CAPS), which is similar to Internet Explorer's Security Zone model, however there is no graphical user interface for setting these options. We recommend looking in the Help, For Internet Explorer Users menu to help users understand how terminology differs between the two applications.

The following are some steps to disable various features in Mozilla Firefox. Note that some menu options may change between versions or may appear in different locations depending on the host operating system. You should adapt the steps below as appropriate.

To edit the settings for Mozilla Firefox, select Tools, then Options.

More: http://www.us-cert.gov/reading_room/securing_browser/