personally i don't think there is any priority on browsers with respect to seo.But google chrome and firefox are the most popular browsers.I don't understand what special value do they provide in seo though people may have their perceptions.

Mozilla Firefox is unbeatable

Mozilla Firefox..

Mozilla,Google Chrome is the best browser to get correct results in SEO

Mozilla Firefox is really best, because it has so many shortcuts you can easily remember it from keyboard..

google chrome i think

Mozilla Firefox provides early results.

Mozilla Firefox are the best browser for SEO.

Mozilla Firefox is the best for SEO.

in my opinion google chrome and opera are the best browser for SEO

Mozila Firefox is one of the best browser for seo. Here You can easily install the helpful seo add ons.I m always using the browser.

Browser does not concern with SEO.
You can use any browser, you will get same result.

Browser has nothing to do with SEO.

Google is the best browser for SEO.

Mozila Firefox is best browser because it has good seo ad-ons.