detect-vimium

Detect the Vimium Chrome extension

Detect whether the Vimium Chrome extension is installed.

hasVimium returns true if Vimium is detected, false otherwise. This detection is not 100% accurate.

if (hasVimium()) {
  alert("Hey, you have Vimium!");
} else {
  alert("I don't detect Vimium, but it might still be there.");
}