I'm going to be in an area with shotty internet connection. I would like to be working on a Google Drive doc but know it usually doesn't let you edit if it's not connected to the internet. Is there a way around this? I will be the only person working on it and it's not shared. If relevant I'm using Windows on a laptop with Firefox.
I am afraid you need to switch (just for editing your docs) to Google Chrome.
As per the documentation found here :
"Offline access is only available in the Google Chrome browser."