According to Google Chrome browser page, the present Chrome version is said
to support Mac OS X 10.9.5 to present 10.11.5. Chrome Browser - Google
I’m on 10.6.8, and here’s what I’m using: Version 49.0.2623.112 (64-bit). The answer for this question is that you CANNOT download Google Chrome for OS X 10.5 and 10.6 as Google have stopped providing support for both these versions. Dec 24, 2012 same problem!! Cannot find this version of chrome for 10.5.8 even though google says 'chrome compatible. I can re-download Chrome for Mac OS X 10.5.8?
However, the issues and problems that Chrome continues to show Mac users,
indicate that it is not a wise choice for Macs. Users have found Chrome to be
a resource hog, that affects all OS X performance.
A better browser may be found in Mozilla Firefox; also Safari is still supported by
Google Chrome For Mac 10.5 8 Free Download
Apple at present (my OS X 10.9.5 has recent version Safari; I prefer Firefox.)
Google Chrome 8.0 Download
• How to Download and Install Firefox on Mac - Mozilla Firefox Help:
Also browser such as SeaMonkey (Mozilla) has email client with browser for 10.9.5.
Google Chrome Download Mac 10.6.8
A few others are likely OK, that won't cost you performance elsewhere.