Unknown property 'box-sizing'. Declaration dropped.

[unveiled14@…]

Warning in Firefox console appears on page load when jquery is included. To recreate: include jquery in an otherwise empty html file and open in Firefox (19.0). Doesn't break anything, but it's annoying for a library to generate warnings that don't indicate that they originate from the library.

[dmethvin]

The CSS box-sizing property is real. Firefox should not warn about it. Please don't let the anal retentive crowd turn this into another #7535. Complaints can either go to /dev/null or here: ​https://bugzilla.mozilla.org/show_bug.cgi?id=243412

[m_gol]

Yeah; unfortunately, Mozilla people seem to think box-sizing is a bad idea (I strongly disagree, happily using * {box-sizing: border-box;} on my sites) and they don't IMHO pay enough attention to fixing its issues and removing the prefix.

There's not much we can do about it, though.

Also, if we paid attention to such warnings, we would be killed by Opera that complains about every single vendor prefixed property it doesn't recognize (and why should it? it's vendor prefixed, for Christ's sake!).

[m_gol]

#13707 is a duplicate of this ticket.

[anonymous]

I strongly disagree, happily using * {box-sizing: border-box;} on my sites

Your strong disagreement doesn't count for much if you're using that css anywhere under any circumstances.

[anonymous]

Just pinging to say that after 9 & 1/2 years, the FF bug responsible for this looks to be only a few more months (optimistically, weeks?) away!