My preferred browser on my PC is now on my Mac too. Sweet.
For better tab handling (features up the wazoo, including command-click to open new tab, reorderable tabs, auto-open links with target=_blank in new tabs, javascript popups to new tabs, etc), just install the Tabbrowser Extension from http://texturizer.net/firebird/extensions.html. Works beautifully.
Firefox
web browser
Version: 3.0.4