Latest Foundry Release Performance - Firefox

This is more a bug report / attempt at making a ticket than reaching out for help.

New major version 14 release seems to have introduced / worsened major performance problems with the Firefox browser.

I have been playing the Mythspeaker and Abomination Vault modules and since Version 14 “frame-rate” (For lack of a better term) has been abysmal. Moving the map, zooming in or out, and especially the dice rolling can be like watching a slide show and missing “frames.”

Steps I’ve taken to alleviate:
Ensured hardware acceleration is on.
Tried turning it off to see if it helps (It does not)
Ensured that Firefox is not running in Efficiency mode
Asked the DM to clear the chat log (Minor, temporary, increase in performance but still really bad)
Turned visual dice (This gets rid of the problem of dice rolling causing even worse performance but doesn’t really fix anything)
Turned off all other running applications except Discord (Since we use that for voice)
Updated drivers for all hardware
Running it on a different (Albeit slower) Windows machine with a fresh install of Windows.
Running it on Linux instead of Windows.

Base System Specs
AMD 9800x3d
64GB memory
AMD 7900XT Graphics card
Windows 11 or Linux Kubuntu

I doubt it is the computer’s fault. I hope I’ve tried enough troubleshooting before submitting this.

Yes, chromium runs fine. I’m not surprised as this would be the browser I’d focus on since it is the vast majority of the market. I have, grudgingly, switched to Chrome in the meantime but it would be great if we could get some Firefox optimization.