Where Does Fennec F-Droid Store Profiles and Data?
Fennec keeps its Gecko profile in app-private storage. Migrate with Firefox Sync, not file copies.
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Fennec F-Droid is Firefox for Android with proprietary bits stripped, so its data model matches Firefox mobile exactly. Profiles, logins, and history live in app-private storage under its own package name, unreachable without root.
Mozilla's own guidance applies: move phones with Firefox Sync, not folder copies. Sync carries tabs, bookmarks, passwords, and history across Fennec, Firefox, and desktop. Local file backup needs root or ADB tricks because allowBackup is off.
Where Fennec stores this, by platform
App-private profile (package org.mozilla.fennec_fdroid) + Firefox Sync
Profile with cookies, logins, and history lives in private app data following the Firefox Android layout. Enable Firefox Sync for migration. Root level copies follow the same paths as org.mozilla.firefox with the Fennec package name.
Frequently asked questions
How do I move Fennec to a new phone?
Sign into Firefox Sync on both devices and let tabs, bookmarks, logins, and history transfer. Manual profile copies need root and matching package paths. Sync is the supported route for everything except extensions.
Does Fennec support Firefox extensions?
Yes, including the wider add-on collection Firefox mobile restricts. Extensions live inside the same private profile, so they migrate with Sync where the extension supports it and reinstall otherwise.
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