How to start firefox in fullscreen mode?

how do i start firefox 4 in fullscreen mode (the one activated by pressing f11)?


Solution 1:

on Linux (works on debian jessie):

firefox -url http://superuser.com &
xdotool search --sync --onlyvisible --class "Firefox" windowactivate key F11

firefox line - starts firefox with url and detaches from terminal ("&"). "&" is required, otherwise following script won't execute while firefox exits.

xdotool line searches window with partial name "Firefox" (partial name of running app window can be determinated by xwininfo), activates firefox window, sends key F11 to Firefox.

This code is bit better than YumYumYum's solution (sending key only when firefox actualy started. sleep is not really usable approach, cause can miss firefox on slow/overloaded computers or too late on fast computers)

sorry for late answer (missed 6 years)

Solution 2:

Create a new profile by running:

firefox -ProfileManager

Run firefox with the new profile, move to full screen using F11 and then close it by alt + f4

Each time you will use this profile it will be opened in full screen.

Solution 3:

Many useful plugins mentioned in other answers, but not many that work on Firefox 57 (Quantum). If you're stuck, try ForceFull. For bonus points, it goes fullscreen instantly on startup by default. No config necessary to get that behavior.

Solution 4:

Command Line

Firefox command line option -fullscreen didn't work for me:

"firefox.exe" -url http://superuser.com -fullscreen
  • MDN - Command Line Options
  • MozillaZine - Command line arguments

Extension

But the use of R-kiosk 0.9.0 extension by Kimmo Heinaaro works like a charm.

Real Kiosk is a Firefox extension that defaults to full screen, disables all menus, toolbars, key commands and right button menus. Alt+Home still takes you home.

Solution 5:

I used the useful solution of @Zero in Raspberry PI 3b.
It works well, but sometimes the Firefox is not "ready" to receive the F11 keypress event.

Then I did a little change: a delay before Window activation and F11 key press:

firefox -url http://superuser.com &
xdotool search --sync --onlyvisible --class "Firefox" windowactivate key F11