XPCOM to store your data

Here are some more links after my research.

If you are using Javascript to write an XPCOM Component to store your data, you can store objects of any kind, and it’s better to make it a service rather than an instance.

References:

• passing/getting data from/to custom xpcom service
• Creating XPCOM Components
• Using an XPCOM singleton component
• Code snippets
• Code snippets:JS XPCOM
• JavaScript Component Wizard
• mozilla.dev.extensions