Expected Behavior

The native password generator dialog should be launched when a password generation is requested.

Current Behavior

Nothing happens.
There is a "Cannot decrypt message" error in the extension debugging console.

Possible Solution

After building the extension from the develop branch and loading it (unsigned) in a Firefox Developer Edition instance, everything seems to work as expected.
A bisection leads to 4a0cf3a which is the first working commit.

A new release of the extension would be much appreciated.