Firefox extension preferences

How to save and get the user preferences seperatly using firefox extension.

Note: don't use the firefox core preferences. for example type about:config in firefox address bar it shows a default preferences stored in browser.

I don't need this type storage.

I need only sto开发者_开发技巧re the user preferences collecting from the text box and save seperatly.

Use DOMStorage or simple-storage.

You could save the text to a file:

https://developer.mozilla.org/en-US/Add-ons/Code_snippets/File_I_O