Originally Posted by StuartD

No, it should be working fine because you're using 3.5. I purposely didn't make it compatible with older versions of firefox.

That's truly bizarre that it is not showing the options. There's not much I can do to fix it when I don't get the same problem....

But you're not the only one to have this problem.

If you feel up to it, go to about:config and type in javascript.
It should display a few settings to you.
javascript.options.showInConsole will be set to false, if you change that to true (double click on it) it should force Firefox to show extension errors into that error console.