mobile_user.js/README.md

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# user.js | Firefox Fenix Nightly, Iceraven, Fennec F-Droid
The `user.js` file is used to configure Firefox for android in the safest and fastest way possible.
## Goals:
* enhance security and privacy
* improve performance
* better fingerprint possible
* reduce automatic connections
## Compatible browsers:
This `user.js` has been designed for mobile purposes and you can use it on these browsers:
* [Firefox Fenix Nightly for Android](https://firefox-ci-tc.services.mozilla.com/tasks/index/mobile.v2.fenix.nightly.latest) - Mozilla-mobile
* [Iceraven browser](https://github.com/fork-maintainers/iceraven-browser) - Forks maintainers
* [Fennec F-Droid](https://f-droid.org/en/packages/org.mozilla.fennec_fdroid/) - F-Droid
If you are running IcecatMobile or old Fennec (version 68) use [Quindecim user.js](https://git.nixnet.xyz/quindecim/mobile_user.js) instead.
## How to install:
### **ROOT METHOD 1** *(file manager)*
I would like to suggest the use of [Simple File Manager Pro](https://f-droid.org/en/packages/com.simplemobiletools.filemanager.pro/), [Material Files](https://f-droid.org/packages/me.zhanghai.android.files/) or [TWRP File Manager](https://twrp.me/Devices/) before proceed.
- Download and install Firefox Fenix Nightly, Iceraven, Fennec F-Droid or Icecatmobile from their official websites (see above)
- Start the browser for the first time (offline mode/no data connections) and wait about 5 sec.
- Close it.
- Clone or download zip file and extract it
- Locate browser's installation directory similar to this:
✳️ Firefox Fenix Nightly `data/data/org.mozilla.fenix/files/mozilla/[xxxxxxx].default`
✳️ Iceraven `data/data/io.github.forkmaintainers.iceraven/files/mozilla/[xxxxxxx].default`
✳️ Fennec F-Droid `data/data/org.mozilla.fennec_froid/files/mozilla/[xxxxxxx].default`
- Copy the extracted `user.js` file to the above installation directory.
- Delete `prefs.js` file inside the above directory
- Start the browser and test if `user.js` was applied :
browse to `about:config` (put it in search bar) and look if `config.applied` is `true`.
If this doesn't work I suggest you to use the **ROOT METHOD 2** below.
### **ROOT METHOD 2** *(app)*
- Download and install the browser from their official websites.
- Download and install [User.js Updater](https://github.com/v1nc/user.js-updater/releases)
- Start the browser for the first time (offline mode/no data connections) and wait about 5 sec.
- Close it.
- Open `User.js Updater` app and grant storage permission.
- Choose Custom and write the following:
https://git.nixnet.xyz/Narsil/mobile_user.js/src/branch/master/user.js
- Tap `UPDATE` at the bottom and grant root permission.
- Start the browser and test if `user.js` was applied :
browse to `about:config` (put it in search bar) and look if `config.applied` is `true`.
- **AFWall+ USERS:** You can disable `Use Download Manager` option into `Settings` and enable data connection just to the app itself.
### **NON ROOT METHOD**
Have a look at Non-Rooted guide from Arkenfox:
[Firefox Android](https://github.com/arkenfox/user.js/wiki/1.6-Firefox-Android#small_orange_diamond-non-rooted)
## Considerations
Some automatic connections could not be blocked so you will have to add them to your host list (root required)
firefox.settings.services.mozilla.com
https://bugzilla.mozilla.org/show_bug.cgi?id=1598562#c13
safebrowsing.googleapis.com, safebrowsing.google.com, malware-error.mozilla.com, phish-error.mozilla.com and developers.google.com (safebrowsing is active and not changeable)
https://github.com/mozilla-mobile/fenix/issues/14163
## Thanks
I really thank the following authors:
* [Arkenfox](https://github.com/arkenfox/user.js) - The majority of this user.js.
* [LibreWolf](https://gitlab.com/librewolf-community) - Some strings.
* [Quindecim](https://git.nixnet.xyz/quindecim/mobile_user.js) - Initial releases and unique strings.
* [Tor Project](https://www.torproject.org) - Some Tor Browser strings.
* [gallegonovato](https://git.nixnet.xyz/gallegonovato) - For his suggestions and support.
* [v1nc](https://github.com/v1nc/) - For his user.js updater app.
## License
GNU General Public License v3.0.
See `LICENSE` for more details.
## Other mirrors
https://gitlab.com/Jorgu81/user.js/tree/master/Mobile