Go with chrome and don’t worry because it can allow you to synchronise your gmail account with all Google services and if you can get a chromebook that’s cool. If you can’t, go and install cloudready OS on your pc it’s a free chrome OS alternative.
You can edit your gig any time you want, but I think it’s better to not edit more than 3 time a month, because on every edit the gig will be out of the search results for many hours.