Failed to access your camera using firefox 69.0.1

When I use Firefox 69.0.1 I Jitsi meet cannot access my camera. I have a Logitech C920 webcam. I have been trying for over a month now to find a solution. I have contacted Firefox and Logitech and I have tried their suggestion, but the issue still persists. About a month ago I was able to access Jitsi meet in Firefox without any issues.
I have contacted the webmaster of the site using Jitsi meet, but he cannot figure out what the issues are either.
I can open a webcam test page using Firefox and the webcam work okay. The webcam works just fine when using Chrome.
I am hoping you can offer a solution. The website using Jitsi meet is https://representus.com.au
Thank you

Does it work if you try it on meet.jit.si?

Hi damencho, no, it does not work on meet.jit.si
I get the same message “failed to access your camera”

If it works here https://appr.tc/ and doesn’t work on meet.jit.si, the issue is fixable. If this the case maybe upload here the js console logs from a failed attempt from meet.jit.si and someone can look at it when time permits.

Hi damencho,
I was able to access Room: 904961560 okay. How do I get the js console logs?

Hi again,
I just added this to Firefox: https://addons.mozilla.org/en-US/firefox/addon/javascript-java-bridge/?src=search
And now I am able to log in to Jitsi meet. I do not understand any of this.

Thanks for your help.