Q: Google Chrome for 10.5.8?

See if this page will help. Chrome 21 is the last release for OS X 10.5 Leopard.

Download Google Chrome here.

  http://web.archive.org/web/20120726095235/http://dl.google.com/chrome/mac/stable /GGRO/googlechrome.dmg

Google has apparently now blocked the Internet Archive Wayback Machine from being able to access previous Google Chrome downloads...

Try this:

http://google-chrome.en.uptodown.com/mac/old

No.

And older versions of any web browser are no longer supported and pose a security risk.

Your best bet to staying secure and supported online is to upgrade your version of OS X, if you can.

On OS X 10.6 Snow Leopard, Safari is far too outdated and is considered very unsecure, Google has, also, dropped support for Google Chrome on OS X 10.6 Snow Leopard making the last Chrome version for 10.6 also risky and unsecure, now.

Minimum Mac OS X for latest Chrome web browser is now OS X 10.7 Lion at later.

So, your only choices for up to date, supported web browsers are, currently,

Mozilla Firefox

SeaMonkey

Waterfox

Good Luck