Multiple Sites Opening Test
Firefox 3.0 Beta 4 Vs Opera 9.50 Beta Vs Safari 3.1 Beta : The Browser World

The sites tested
1. http://www.yahoo.com
2. http://www.youtube.com
3. http://www.live.com
4. http://www.myspace.com
5. http://www.microsoft.com
6. http://www.ebay.com
7. http://www.amazon.com
8. http://www.deviantart.com
9. http://www.bbc.co.uk
10. http://www.veoh.com
11. http://www.apple.com
12. http://www.cnn.com
13. http://www.adobe.com
14. http://www.download.com
15. http://www.digg.com
(The sites chosen for the test are among the top 200 in Alexa ranking.)

Procedure
1. Open the browser
2. Clear the cache, browsing history, and adding the the 15 sites to the favorites
3. Restart the browser
4. Open the 15 pages using the built-in “Open All in Tabs” feature
5. Measure the time taken for all the tabs to load completely
6. Find the amount of Memory used after all 15 tabs are completely open

Some Screenshots! ( see http://www.thebrowserworld.com/2008/03/29/...s-opening-test/ )

The Results:
Time Taken (Average of 5 Tests)
First : Firefox : 104 Seconds
Second : Safari : 110 seconds
Third : Opera : 130 seconds

Memory Usage
First : Firefox : 138 MB
Second : Opera : 146 MB
Third : Safari : 181 MB

Conclusion
"So, Mozilla Firefox won both the tests, while Opera and Safari were 2nd in one test each, and 3rd in one. Though Opera may seem to load pages faster than the others, it loses out badly in multi-tabbed browsing.Firefox 3 has improved a lot since its predecessor Firefox 2 in its memory usage, and has even surpassed Opera’s efficiency in this test. Though Firefox may have the lowest Acid3 score among the three, but for normal day-to-day browsing Firefox rocks!"