It's a good idea, or at least originally it was a good idea. In reality it devolved to, well, see the links I provided.
Edit:
Note: those three are the ones I remember because I was reading about them at the time, or participating in some form in the discussion. How many are there that just slip through? Well, you can kinda see for yourself (second hand guessing, by proxy etc.):
1. MDN lists various web APIs, including experimental ones: https://developer.mozilla.org/en-US/docs/Web/API Almost every single one that's marked "experimental" is shipped by default in Chrome
2. Mozilla lists its position on various standards. Almost all of those marked as "considered harmful/negative" are shipped by default in Chrome https://mozilla.github.io/standards-positions/ (exceptions are a few deprecated and removed ones like HTML Imports)
3. Chrome currently ships 1100 more APIs more than Firefox: https://web-confluence.appspot.com/#!/confluence (note: a single standard like "File System Access API" may expose dozens of these APIs) Is it because Firefox is lagging, or is it because Chrome just powers through, all consensus be damned?