Commands

Command	Action
myfox browser [args]	start Firefox; the arguments go to Firefox
myfox browser --myfox-restart	restart Firefox, restoring windows and tabs; if it isn't running, start it
myfox refresh [--force]	update the tweaks, the themes, the bookmarklet styling and MyFox
myfox reinstall	download Firefox again and re-apply the tweaks
myfox uninstall [--remove-profile] [--no-restore-sync]	uninstall MyFox
myfox command [on|off] [--keep-backup] [--json]	the firefox shell command
myfox profile list|new|import|apply|use|remove	profiles: list, create, import, apply the tweaks, switch, delete
myfox completion bash|zsh|fish	print the completion script
myfox help	the list of commands
myfox --version	the MyFox version

Common flags

For refresh, reinstall, uninstall, command, profile (except list):

Flag	Action
--gui	the dialog in a graphical window instead of the terminal
-y, --yes	run without confirmation

Confirmation

Every command except browser and help first shows what it is going to do and waits for confirmation.

Without a terminal (a script, cron) and without -y, nothing is done: what would be done is printed, with the command to run with -y; exit code 1.

Restrictions

reinstall and uninstall don't run while Firefox is running; for profile, see Profiles.

Completion

Tab completes myfox's commands (with their descriptions in zsh and fish), flags and their values, and profile IDs for myfox profile …. MyFox 1.3.0 or newer sets it up itself, and an older install gets it with myfox refresh; it takes effect in a new shell:

Shell	Where
bash	~/.local/share/bash-completion/completions/myfox (needs the bash-completion package, which most distributions have)
fish	~/.local/share/fish/vendor_completions.d/myfox.fish
zsh	_myfox in the first folder of your own in $fpath: in the home folder, writable, not in a plugin manager's git checkout (such as ~/.zsh/completions)

zsh has no such folder by default. Without one, the install says so, and it is set up by hand: add to ~/.zshrc, after compinit,

eval "$(myfox completion zsh)"

or save the output of myfox completion zsh as _myfox in a folder of $fpath. myfox completion --help describes this for every shell. A file of the same name that isn't MyFox's is left alone. myfox uninstall removes the scripts it put there.

Reinstalling

myfox reinstall replaces Firefox only once the new copy is fully downloaded, and applies the tweaks again. The profile is not changed. Until the replacement the reinstall can be cancelled (Cancel, Esc, closing the window, Ctrl+C with -y); the current Firefox then stays.