Firefox on an Android tablet I have just bought an Android 7 TABLET for convenient browsing and reading research (3-4 hours to kill once a week and more, free WiFi available) and for stand-alone navigation (GPS capable).
No SIM slot, no Google account. Tablet has WiFi, USB-2 OTG, micro-SD slot and I've got a spare U1 32Gb card. 
I want to install Firefox so I can quickly synchronise bookmarks with my laptop (Linux Mint 18.3LTS).
Can this be done via a conventional download to either tablet or laptop (whichever is simplest)?
On Mozilla's official wiki page for the Android platform they have a direct link to download the apk that you can install to your device manually without access to the Play Store through a Google account.