Slow opening on firefox

[tomdereub]

I'm using onlyoffice (8.1.1.26) on nextcloud (29.0.10), on a self-hosted server of my company.

The opening of a document lasts about 25 to 30s on firefox, versus 5 to 10s on edge or chrome.
It makes a great difference when man works a lot on onlyoffice online...

I opened an issue on firefox bug tracker here : https://bugzilla.mozilla.org/show_bug.cgi?id=1942478
I don't know if there is something to do on onlyoffice sides to make it more efficient with firefox ?