> More likely someone said "We don't want to put effort into testing Firefox right now." The product teams should NOT have to test on Mozilla Firefox. We (disc

> More likely someone said "We don't want to put effort into testing Firefox right now." The product teams should NOT have to test on Mozilla Firefox. We (disclaimer: I am not an Mozilla employee. Just someone who loves the web.) have a very robust Web Compat program https://github.com/webcompat/web-bugs/issues/27435 https://github.com/webcompat/web-bugs/issues/27435 and Web Compat is very interested in helping product teams. I think what the Edge team was trying to say above was detect feature support, not browser vendor. In fact, I would say there are many professionals at Microsoft willing to help the Skype team use feature detection properly. or there is always the Mozilla Developer Documentation https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Feature_detection https://developer.mozilla.org/en-US/docs/Learn/Tools_and_tes...