Go to Settings > Home page and check "Search the web". In about:config change browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar to false to prevent the annoying jump to the URL bar.The latter was broken in 148, which caused a revol...
The search widget moved up . IMHO it should be where my mouse pointer is most likely. Please put it back in the middle or let me choose. There are people with 27" plus screens, you know. And they are more likely to use FF than people with 13" laptop...