If you like Firefox but want to have mail, news, messaging and browsing all together then why not try the suite :)
"The Mozilla Foundation has made Mozilla 1.7 Release Candidate 2 available for download. Like the first release candidate, which came out last month, this build is designed to ensure that there are no major bugs remaining before the final release of Mozilla 1.7. The Mac OS X version of RC 2 now includes the Quality Feedback Agent (Talkback) crash reporting tool, bringing it in to line with Windows and Linux and making it much easier for developers to pinpoint the causes of crashes.
1.7 RC 2 will probably be followed by a further release candidate before the final launch of Mozilla 1.7. After the milestone ships, the 1.7 branch will replace the 1.4 branch as the stable development baseline, with Mozilla Firefox 1.0 and the next major version of Netscape expected to be built from it. More information about this latest release candidate can be found in the Mozilla 1.7 RC 2 Release Notes and builds are available from the Releases page or the mozilla1.7rc2 directory on ftp.mozilla.org.