How come different browsers give different results for business rankings?

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Steven Ciccantelli: How come different browsers give different results for business rankings.For instance +Google Chrome likes my website better than explorer.
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  Perry Bernard: Are you sure it's the browser? Check that you are not logged in to either one, as your login status or browser privacy settings can affect location or demographic data being sent to Google and thereby influence apparent rank, especially if your business is local
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  David Mason: Google personalizes search results. Sign out of Chrome then do your search. You'll notice a similar rank as Explorer, as well as Firefox, etc.
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  Steven Ciccantelli: +Perry Bernard +David Mason ok thanks will do I would use Firefox but it usually crashes.
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  Ryan Cramer: I pretty much use Chrome all the time now, and constantly logged in to my G account.  ;In order to get the most unbiased results, I changed my search settings to not provide private results : ;
  
  Step 1: do a search on Google
  Step 2: click on the gear at the top right
  Step 3: select "Do not use private results" under "Private Results"
  Step 4: click "Save"
  
  This way you can stay logged into G to check analytics, Gmail, and G+ (as well as your other G products) and get the vanilla search results you may want.
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  Kapil Bhardwaj: Best and simple solution Try to use Private Browser when search :)  ;
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  a Vipin Sharma: Google is bit intelligent...notices each and everything u search in Google and then click on the relevant website. while you are logged in your GMAIL account, now say if there is a website that comes on 10th page with a keyword, you search it regularly, reach 10th page and then click that website.. after some days, that 10th page website will be shown on the first page or anywhere on better position... so the best option to search the correct ranking is to search on a browser which is rarely used in your computer. Like I uses IE only to check rankings..and I get the correct rankings, and I use my GMAIL and regular work on chrome, I get different rankings, which are infact good, but those are not the corret rankings.
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  Dallas Longshore: I use a Chrome Incognito window for checking search terms/ranking.  ;Seems to disregard all history, cookies, etc.  ;And SEMRush will let you conduct a couple free searches before suggesting you sign up for an account; seems like having an account would be pretty powerful stuff if you have a need to run multiple queries/domains per day.