[orca-list] How to disable automatic switching to focus mode in firefox

[Keith Barrett <lists barrettpianos co uk>]

        Hello,

If possible, I would like to have orca remain in browse mode and not 
automatically change to focus mode as I navigate a page.

I have found the checkboxes in the firefox section of orca preferences 
but no combination seems to produce what I am looking for.

Thanks.

Keith