I just did a search on google for "variation in serps depending on browser" and it does throw up some interesting articles.
These articles don't seem up to date but they will point you in the right direction.
I just did a search on google for "variation in serps depending on browser" and it does throw up some interesting articles.
http://www.verticalmeasures.com/search-optimization/do-search-results-vary-by-browser-2010/
http://www.rimmkaufman.com/blog/user-agent-tools-for-seeing-full-serps-by-device/17062013/
http://forums.seochat.com/google-optimization-7/browser-serps-variations-243431.html
http://moz.com/community/q/is-it-no...s-and-serp-pages-to-vary-depending-on-browser
http://pageladder.com/how-to-get-served-global-results-not-personalized-results-in-google-serps/
These articles don't seem up to date but they will point you in the right direction.