Firefox 83, and Big Sur Duplicate notifications for YouTube

[MacinMan]

Hey all,
I've been running Big Sur 11.0.1 on a Late 2015 27-inch iMac since release day, and it's been extremely stable with the occasional cosmetic glitch. When I upgraded I had the latest version of Firefox installed which was 82.0.3, and all was well. Now with Firefox 83, when I start firefox and open YouTube, any notifications I have waiting show up in notification center duplicated. So if I have one subscription notification say for a new video released, it shows it twice. Now if Firefox is running, I only see it once, it's ONLy when I open it. I've tried turning off firefox in notification settings and back on, i've deleted all allowed sites in firefox itself. Nothing seems to solve this glitch, and it's ONLY Firefox with Youtube which suggests a specific glitch.

Has anyone else seen this, and have they been able to solve it?

Thanks, any feedback appreciated.

 

[MacinMan]

Hey guys, just coming back to say the issue seems to be resolved with Firefox 84, and Big Sur 11.1. While I never did hear back on this issue from ANYONE I asked, I have been using Firefox 84, and Big Sur 11.1 a few days now, without this issue being present.

 

[MacinMan]

The only notification problems I seem to have now are:
the Macrumors article notifications seem to have stopped for both Firefox, and Safari. I haven't gotten any for a while. What's funny is, the forum alerts still work in firefox, it's just the main feed for the stories that has stopped. Is this a known issue? It had been working for quite a while in both (even after upgrading to Big Sur). This is recent in the last couple weeks.

Any info would be helpful.

Thanks