Well my favorite browser is Firefox but in Mac i prefer Safari to Firefox. But i noticed a small usability low in Safari today which irritates me much these day after i actually discovered it. What happens is when i search something using the Google Search bar built in the Safari and i open a new tab i lose the search string i just used.
Seems the Search string remains in the Google bar only to that tab and is not shared in the Safari windows over all the tabs. People may find it good because they may ask why the hell do you want to search using the same search string which you just performed search with. But in my case i do quite a lot of search modifying my search string and keeping the previous Google search result saved in an open tab . In this scenario i am not pretty happy with this behavior of Safari. And this is not the case when using Firefox .Firefox keeps the search string in Google search box saved for all the tabs until its replaced by other Search string. May be this is the reason i find it irritating in Safari because i am too used to with Firefox in my Windows machine at work 
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You can actually get the google search string on your new tab in safari by clicking on the google search box just before you open a new tab.
This doesnt happen if you open a new browser window though. But you could open a new tab and then drag it out to its own window.
Hope this helps.
Using
Sure it helped Pat.. thanks