Convenient wrapper for firejail and firefox

ff

#!/bin/bash
# ff: convenient wrapper for firejail and firefox
#
# You can mix and match most keywords. Anything that's not a keyword
# will become the name of the private profile.
#
# Examples:
# ff
#    - use basic defaults (no private directory, system resolver)
# ff 1dns personal
#    - use a private directory in $HOME/firefox-profiles/personal
#    - use the 1.1.1.1 server for domain resolution
# ff 8dns personal
#    - use a private directory in $HOME/firefox-profiles/personal
#    - use Google DNS servers for domain resolution
# ff 9dns junk
#    - create a blank private profile and throw it away at the end of the
#      session
#    - use Quad DNS resolver
# ff work novirbr
#    - use a private directory in $HOME/firefox-profiles/work
#    - don't use a virtual bridge even if one is available
# ff nojail
#    - just start firefox without firejail
#

if ip link show virbr0 2>/dev/null; then
    net='--net=virbr0'
fi

while (( "$#" )); do
    case "$1" in
        nojail)
            /usr/bin/firefox
            exit 0
            ;;
        1dns)
            dns='--dns=1.1.1.1'
            ;;
        8dns)
            dns='--dns=8.8.8.8 --dns=8.8.4.4'
            ;;
        9dns)
            dns='--dns=9.9.9.9'
            ;;
        junk)
            private="--private=$(mktemp -d)"
            ;;
        novirbr)
            net=''
            ;;
        *)
            private="--private=$HOME/firefox-profiles/$1"
            mkdir -p $HOME/firefox-profiles/$1
            ;;
    esac
    shift
done

firejail $dns $net $private firefox -no-remote