To enable ADB on an Amazon Fire Tablet, first activate Developer Options by tapping the "Serial Number" repeatedly. After Developer Options are enabled, find the newly added menu in Device Options ...

On your Fire tablet, accept the onscreen warning so that your Fire tablet trusts your PC. In Fire Toolbox, click on Google Services to install what you need to run the Play Store.

And one of the most useful tools for hacking Amazon’s tablets is a free third-party utility called Fire Toolbox. Amazon Fire HD 8 (2020) with Google Play) ...