How to Execute SQLite Queries on Firefox Mobile Profile Data

Thanks for your time.

I am on Firefox Mobile.

I plan to use a restartless approach using the add-on node.js tools.

I need to pull profile data in my app, some of which requires direct SQL due to spotty mobile support according to: http://ift.tt/1PFyEqT

I plan to use indexed-db, thinking that this will give me the ability to run SQLite queries against existing user profile data (mostly needed for reading).

Am I on the right track? I have also seen simple-storage. Is that a better tool?