this is a guide to install the latest pre­view ver­sion of fire­fox aurora (fire­fox 6 alpha cur­rently) on fedora 15 64 bit. fedora doesn’t have the ppa system that i used for ubuntu 11.04. it will only install it for the cur­rent user…not system wide. all com­mands should be entered in the ter­minal. firstly, back up your exist­ing moz­illa dir­ect­ory (this might take a little while) cp –r .moz­illa .mozilla.bak down­load the latest ver­sion of fire­fox aurora from the moz­illa site here cd into wherever you down­loaded this file to…for me it’s cd Down­loads now, extract the file to a dir­ect­ory called .fire­fox in your home directory tar –jxvf fire­fox* –C /home/yourusername/.firefox next we need to install some lib­rar­ies that fedora 15 doesn’t install by default. as root issue yum install libstdc++.so.* glibc-2.14–3.i686 xulrunner-5.0–2.fc15.i686 close down any fire­fox win­dows you have open and run the fol­low­ing to start fire­fox (ver­sion 6.0a2 at the time of writing) .firefox/firefox there may be easier ways of doing this…i’m not a linux guru. if you have your own tips feel free to com­ment. some of my exten­sions aren’t working…most not­ably xmarks but this will improve in time. seems stable…i’m using it to write this post in fact.