Arm unstable is RLBox available?

Hi about this
https://arstechnica.com/gadgets/2021/12/firefox-95-for-windows-and-mac-introduces-rlbox-a-new-sandboxing-tech/
is available on unstable rpi4 arm ?

$ pacman -Qi firefox
Name : firefox
Version : 95.0-1

Version 95 is available in the Unstable repo for aarch64. Seeā€¦ :arrow_down: