In the end: Thank you for your comment : ) My annoyance with the plugin situation, and at first, no resolution for it, was fixed in 45: https://support.mozilla.

In the end: Thank you for your comment : ) My annoyance with the plugin situation, and at first, no resolution for it, was fixed in 45: https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox?as=u&utm_source=inproduct https://support.mozilla.org/en-US/kb/add-on-signing-in-firef... I'm now running the latest version of FF, but still able to use my plugin.