In certain cases, installing Firefox 2 in the same directory in which Firefox 3 has been installed resulted in Firefox 2 being unstable. This issue was fixed as part of Firefox 2.0.0.15.
Fixed an issue where, when printing a selected region of content from the middle of a page, some of the output was missing (bug 433373).
Fixed a Linux issues where, for users on a PPP connection (dialup or DSL) Firefox always started in "Offline" mode (bug 424626).
Re: Firefox 3.0.1 security and stability update now available for download
^Thats not the problem with ff3 its due to kaspersky av u r using,FF3 loads pages much faster now than ff2 i have checked the loading time with several websites.