Requirements

• Docker Engine (Docker Desktop is not required!)
• x11docker

Build browser image

$ docker build -t firefox .

X server image

To use the --xc option, we need either to pull the out-dated image,

$ docker pull x11docker/xserver

or, to build a newer image locally (preferred).

$ x11docker --build x11docker/xserver

Run

$ ./x11docker -I --xc --share $HOME/Downloads -- --tmpfs /dev/shm -- firefox

References

• based on Jessie Frazelle's dockerfiles/firefox
• sourced from Mozilla's 'Install Firefox .deb package for Debian-based distributions'