Ugly and irritating re-branding of Google search result page will surely bother you if you use Firefox in Mint. Follow the steps below to get the visual appeal back in search results.
Go to "Manage Search Engines" and delete Google. Click "get more search engines", and search for "informative Google search". After installing this search engine your search results will include suggestions, related terms, and more options for all types of searches.
To remove Mint-branding from searches done though location bar, replace "/usr/lib/firefox-addons/searchplugins/en-US/google.xm" with the following code.Now restart firefox, and get the google-branding back.