hi pq5190362
firefox-getLatest has a feature which in addition to the latest release, allows you to download and install any firefox-beta builds, this is mentioned in the info file.
first load firefox-getLatest.tcz
from either the Applications menu, or
Apps, or
tce-load -i firefox-getLatest
then from a terminal type:
firefox-getLatest.sh -m
If you wish to install any beta version for example: "firefox-42.0b7" then simply type
42.0b7
at the prompt, which will download this specific beta version and install it, you may need to add firefox.tcz to your onboot.lst or ondemand depending on previous installed versions.
firefox-getLatest.sh -h
for more info
As yet, Firefox Developer Edition and Firefox Nightly have not been considered as these were not part of the goals of firefox-getLatest, but maybe possible..
regards
coreplayer2