Firefox 3: Display Search Results in New Tab
Contributed by Rob Rogers 
Tagged: Mozilla Firefox When you use Firefox’s search bar, the results are displayed in the current tab. This can get rather annoying when you are don’t want the current tab to leave the web page you were on. To make your search results appear in a new tab, follow these steps:
1. Launch Firefox.
2. In the address bar, type about:config and hit Enter on your keyboard.
3. Scroll down to browser.search.openintab and double-click it to change the value to True.
Now when you use Firefox’s search bar, your results will always appear in a new tab.
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Always open Google Search Results in a new tab
pi said on March 15, 2009
..or you can install google toolbar, then change the settings to open search in new tab :)
Kamakiri said on May 6, 2009
Anonymous (1), it ’s not simple really. The negative part is you’ll have to use Alt+Enter every time. The tip at the top is better.
emarell said on July 19, 2009
I don’t get it. Tip does not do it in Firefox 3.5.1. – even though the about:config entry mentioned here is at “true” using the search bar always replaces the current tab’s contents.
Chris said on February 21, 2010
Thanks for the advice.
Guest said on July 29, 2010
Cons: I’ll forget.
But, we can have our cake and eat it too. Change the setting and use Alt+Enter to display the search result in your current tab.