[kuschku]

Google does this with several of their sites, intentionally making them worse on Firefox (Desktop or Mobile). Firefox Mobile actually already fakes a Chrome Mobile UA in some situations to get around that.

Examples include the Google Search, Google Maps, or YouTube.

I simply configured via about:config the above mentioned UA faker for Google’s sites to fake Chrome’s UA.

[Piskvorrr]

We're in for a sequel of "Only works in MSIE." Brace yourselves.

[kuschku]

Just take a look at Signal Desktop, WhatsApp Desktop’s Beta, Google Inbox during the Beta, or nowadays Google Earth.