/data/data/org.mozilla.firefox is the directory in which Firefox's data is stored on Android. Where are Firefox's extensions' settings and data stored in there? The best I can tell is that they're going to be stored under /data/data/org.mozilla.firefox/files/mozilla/${profile}.default since the names for everything outside of that folder appears to be for temporary files, the application's cache, and network-related things.

These are the paths that I'm sure do not contain extension data or that I'm sure do contain ALL of the extension data:

  • /data/data/org.mozilla.firefox/files/mozilla/${profile}.default/browser-extension-data

1 Answer 1


On Android 10, Firefox 68.7.0


I am not sure if the number before .default is specific to version or something else

For more details, see Firelord's answer here Where Firefox for Android is keeping add-on generated files?

Edit: You can paste file:///data/data/org.mozilla.firefox/files/mozilla/1q4ydoub.default/extensions in the search bar to see details of extensions, size, last modified time stamp

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