This is now possible using snapd's parallel installs feature¹:
$ sudo snap set system experimental.parallel-instances=true $ sudo snap install firefox $ sudo snap install firefox firefox_esr $ sudo snap refresh firefox_esr --channel=esr/stable $ sudo snap install firefox firefox_beta $ sudo snap refresh firefox_beta --beta $ sudo snap install firefox firefox_nightly $ sudo snap refresh firefox_nightly --edge
$ snap run firefox $ snap run firefox_esr $ snap run firefox_beta $ snap run firefox_nightly
¹ https://snapcraft.io/docs/parallel-installs
This is now possible using snapd's parallel installs feature¹:
$ sudo snap set system experimental. parallel- instances= true esr/stable
$ sudo snap install firefox
$ sudo snap install firefox firefox_esr
$ sudo snap refresh firefox_esr --channel=
$ sudo snap install firefox firefox_beta
$ sudo snap refresh firefox_beta --beta
$ sudo snap install firefox firefox_nightly
$ sudo snap refresh firefox_nightly --edge
$ snap run firefox
$ snap run firefox_esr
$ snap run firefox_beta
$ snap run firefox_nightly
¹ https:/ /snapcraft. io/docs/ parallel- installs