Value keeps on changing

[slayer1ss]

Hi, i am using the tests below to identify a browser but value is changing every once a while, even i cant seem to use it properly and i am sure not 1 of these has changed in my pc...

"colorDepth","cpuClass","deviceDpi","platform","installedFonts","processorCores","screenResolution","timezoneOffset","installedLanguages","availableScreenResolution","canvas","doNotTrack","language","pixelRatio","touchSupport","webGl"