Hi

It is not possible to do that at the moment, but this is something that we may look to include in a future update.

Thanks for confirming that it's not possible to install to external storage. I was disappointed to see that a major app like a Firefox browser wasn't already doing that already, as all the free apps I've installed from Adobe and Microsoft and most other social connection related apps already automatically detect external storage presence and by default install there instead. If you are part of the development team, I hope you'll put this in as a future feature since I'm about to be forced to uninstall the FF browser app as internal storage on my Android-Go phone (which is perfectly useable still) but the FF app is hogging about 200MB+ space.

Hi,

The people who answer questions here, for the most part, are other users volunteering their time (like me), not Mozilla employees or Firefox developers. If you want to leave feedback for Firefox developers, you can go to the Firefox Help menu and select Submit Feedback... or use this link. Your feedback gets collected by a team of people who read it and gather data about the most common issues.

You can also file a bug report or feature request. See File a bug report or feature request for Mozilla products for details.