Chrome Indexing VS Mozilla Indexing

Hi guys, 'I'm an official chrome user but today I'm wondering which is the better to use if you check the keyword ranking result in this particular browser 'Chrome or Mozilla' (I'm not so sure if the algorithm is involved?). This is what happening "If I check my keyword ranking in Mozilla I get 1 spot however its different in Chrome" also I try it to check with another PC but I haven't got 1 spot (I think web crawler effect). I don't know that to think? something weird happen now in this G NEW ERA. I hope you get I what mean!

G is pretty complicate nowadays and returned results vary on many factors - IP location, nearest datacenter to you, browser, cookies, user history and etc.. so there's no perfect way to get accurate ranks as they are always different with few positions depending on the factors above..

webmaster tools give you the best position in my opinion.
the rest is not 100% reliable.
and check that you are not logged in with your profile for checking the results.

after setting up your proxies use incognito/private mode