Detect operating system from Google Chrome Extension

Question

I am developing a Chrome extension, and I need to detect which operating system Chrome is running on but i can't seem to find any info on how to do it. Please Help. Thank You.

Answer 1

Recently added, you can use the getPlatformInfo method in Chrome's own API:

chrome.runtime.getPlatformInfo(function(info) {
    // Display host OS in the console
    console.log(info.os);
});

Answer 2

You would need to search for OS name and version inside window.navigator.appVersion.

If you just want to know a platform, see this answer. You can enhance the code by searching for other user agents.

Here is a detailed list of Chrome user agent strings (click on links to see what they mean).