Es geht ganz einfach eigentlich, wenn man sich pingeling an folgende Anleitung (Englisch) hält:
Zitat von the-edmeister in MozillaZineAlles anzeigen1) Backup your 1.5.0.7 Profile before doing anything! (just in case)
A - Firefox Extension Backup Extension (FEBE) - https://addons.mozilla.org/firefox/2109/
B - MozBackup - Backup tool for Firefox and Thunderbird - http://mozbackup.jasnapaka.com/
C - BackupFox - http://www.neowin.net/forum/index.php?showtopic=291258
D - Backup your profile - http://kb.mozillazine.org/Profile_backup2) Create a new Profile with 1.5.0.7 (or whatever you have now), but don't start 1.5.0.7 with that new Profile; after creating the new Profile and being returned the to the Choose User Profile dialog box, click Exit.
3) Install 2.0b2 using the Custom Installation option, but don't launch it at the end of the installation process. On the last Installation window un-check the box that says Launch Mozilla Firefox 2.0 Beta 2 now, then click Finish.
4) Go to the new desktop icon for 2.0b2 and Right-click > Properties; on the Target: line add the following:
space hyphen p space "profileName"
-- so it looks like this (but with the name of your new Profile):Click Apply, then close the Properties box.
5) Now you can launch 2.0 b2 with its' own Profile.
Additional steps you may want to do:
...
Ed
http://forums.mozillazine.org/viewtopic.php?t=462431
2.0 b(eta)2 ist jetzt 2.0 RC1
Leider fehlt mir grad die Zeit, dies zu übersetzten...
Gruss :roll: