This is a better URL: https://docs.google.com/document/d/16PFD1GtMI9Zgwu0jtPaKZJ75...
According to the check this site does, apparently Firefox has Chrome's new table layout engine
On my Mac, Chrome says NO, while Safari says YES. Which seems odd, given the complaints about Safari's implementation of tables on the linked page.
Note the comments on some of these bug fixes:
> Interoperability: matches Firefox.
This is why it is so critical to have multiple browsers with independent engines.
Apparently Firefox was adhering to the standards correctly and Chrome now matches this output.
If there was no Firefox, would anyone care? It may have been caught but not as easily as if users are complaining that a site "doesn't look right in Chrome, but looks fine in Firefox".