From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.6) Gecko/20040312 Description of problem: Browsing the web today unfortunately requires a lot of plugins, some of which are closed source only. Thus, it might be worthwhile to leave Mozilla a 32-bit application so that it can use i386 plugins instead of requiring x86-64 plugins, since a lot of these, e.g. Shockwave Flash, are not yet available for x86-64. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: Try finding plugins for x86-64. Additional info: The i386 RPM of Mozilla works fine on x86-64, assuming the necessary i386 support libraries are installed as well.
mozilla (on FC5) and firefox (on FC5 and FC6) are currently installed by default in both the i386 and x86-64 versions. It is impossible to currently install just the i386 version, because certain other applications depend on the rendering engine. After xulrunner becomes stable enough to be included, it will become possible to have the browser completely separate and only have, e.g., the i386 version installed if a user wishes. (Of course, that will apply to firefox instead of mozilla in the future.)