Checking if browser is in fullscreen
javascript, jquery
Solution
WARNING: This answer was posted for a very old version of Firefox. Your answer is probably not here, keep looking.
In Firefox 3, window.fullScreen works (https://developer.mozilla.org/en/DOM/window.fullScreen).
So, you could potentially do something like this:
if((window.fullScreen) ||
(window.innerWidth == screen.width && window.innerHeight == screen.height)) {
} else {
}
Problem
Is there a way to check if a browser is currently in fullscreen mode (after the user pressed f11)? Something like: ``` if (window.fullscreen) { // it's fullscreen! } else { // not fs! } ``` Thanks. Steerpike's answer is pretty good, but my comment: Thanks a lot, but this answer is not sufficient for FF. In Chrome I can set a small tolerance, but in FF the urlbar and tabs takes a while to disappear, which means after pressing f11, the detected window.innerWidth is still too small.