javascript - Firefox Input Label and jquery 1.9 -

i'm trying figure out best way of detecting firefox without use of .browser (since jquery 1.9 has deprecated)

essentially have html:

<label class="uploadbutton" for="test">test</label> <input type="file" name="test"/>

this works fine ie , chrome nothing in firefox. pre 1.9 had this:

if ($.browser.mozilla) {     $('.uploadbutton').click(function () {         $(this).siblings("input").click();     }); }

which worked without issues.

what best way of making work .browser property gone?

(i looked under features , found no feature detect well..)

i found

ua = window.navigator.useragent.tolowercase()

as part of answer here.

Live