What is the best way to unpack a disk image?

Question

Mozilla Firefox

What is the best way to unpack the image using 7zip or mount the image first, and then just copy the files?

Answer 1

Each user has their own settings. Just copy the file to the settings directories of other users (or create a link - so that they use one file)

Answer 2

and as it is more convenient for you - do so, if as a result you get what you need.