[orca-list] Firefox navigation bundle

Hi folks,

Could someone please tell me how to locate the Navigation bundle for FireFox which allows Orca to use a links list and headings list etc?

Thank you

James

Follow-Ups:
- Re: [orca-list] Firefox navigation bundle
  - From: Dominique Asselineau
- Re: [orca-list] Firefox navigation bundle
  - From: Rich Caloggero