The ovi maps plugin is incompatible with latest Firefox 3.5 release, it is flagged as incomapatible by Firefox and therefore not loaded.

OS: Microsoft Windows Vista 64 bit SP2 Home Premium
Browser: Mozilla Firefox 3.5

To reproduce the bug: Simpy install (or update) Firefox to the latest official version, and You obtain the incompatibility.

What the application do: It doesn't use the plugin as it is incompatible instead of using it.

How Often: Always.

This is a blocker bug because it makes routing and advanced functions impossible to use, leaving non Windows users without alternatives.