How do I install a previous version of Chrome?
You can look up the build version of a Chromium version on https://omahaproxy.appspot.com. Simply paste the version (e.g. 40.0.2172.0) into the position lookup field and submit.
In the output the "base position" represents the build number.
With this number you can finally find the corresponding download on either:
- this page - for builds before early 2016, or
- this page - for builds since early 2016
Updated links may be found on the Getting Involved page of the Chromium Wiki.
I've found this page in case anyone is looking for old versions of Chrome. It only goes back to as early as Chrome 48. But they do provide full binary package for the Windows version in the form of a self-extracting zip archive.
Google Chrome always keeps backup of previous version you can find you previous version in chrome installation directory