Fix Firefox Extension Private Mode Functionality

The Bitwarden extension for Firefox is virtually unusable in a private mode window. This was reported and acknowledged here in 2019 and close in Feb '23, but a year later the issue hasn’t been resolved.

I understand that this will require the browser extension to be refactored, and refactoring is also required to support Manifest V3. Does that mean we should expect this problem to be resolved before June (when Manifest V2 is deprecated), or is this issue being prioritized separately? I don’t see anything on the roadmap about either Manifest V3 or Firefox Private mode.