I'm moving all programs that are available in LiberKey from a windows installed version to a LK version on a harddrive partion (N:) not on an USB stick. I think the superb update management of LK apps will save me a lot of time.

After moving FF5 I faced problems with the addon for my Fritz!box 7170 router from AVM in Berlin.
The AVM routine installs fb_add_on@avm.de in N:\LiberKey\Apps\Firefox\Data\profile\extensions\
During the restart FF5 crashed.
I found N:\LiberKey\Apps\Firefox\FirefoxLKL.exe crashed,
N:\LiberKey\Apps\Firefox\App\Firefox\firefox.exe did not but had no addons installed.

I could fix the issue by moving fb_add_on@avm.de from N:\LiberKey\Apps\Firefox\Data\profile\extensions\ to N:\LiberKey\Apps\Firefox\App\Firefox\extensions\.