Narsil 76273754c5 | ||
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LICENSE.txt | ||
README.md | ||
user.js |
README.md
user.js | Firefox Fenix Nightly, Iceraven, Fennec F-Droid and Mull
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 - Mozilla-mobile
- Iceraven browser - Forks maintainers
- Fennec F-Droid - F-Droid
- Mull - F-Droid
If you are running IcecatMobile or old Fennec (version 68) use Quindecim user.js instead.
How to install:
ROOT METHOD 1 (file manager)
I would like to suggest the use of Amaze, Simple File Manager Pro, Material Files or TWRP File Manager before proceed.
-
Download and install the browsers 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
✳️ Mull
data/data/us.spotco.fennec_dos/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 toabout:config
(put it in search bar) and look ifconfig.applied
istrue
.
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
-
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.services/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 toabout:config
(put it in search bar) and look ifconfig.applied
istrue
. -
AFWall+ USERS: You can disable
Use Download Manager
option intoSettings
and enable data connection just to the app itself.
Installing Iceraven addons in Fennec/Mull/Firefox Nightly
Go to Settings, about Fennec/Mull/Firefox Nightly, tap 5 times over its logo, Debug mode will enable. Back to Settings, the new Custom Add-on collection and add the Iceraven one: 16201230 What-I-want-on-Fenix
If you still need more of them you will have to create your own Collection: https://www.ghacks.net/2020/10/01/you-can-now-install-any-add-on-in-firefox-nightly-for-android-but-it-is-complicated/
Considerations
Once installed go to Settings, ETP and select Strict.
Some automatic connections could not be blocked so you will have to add them to your host list.
firefox.settings.services.mozilla.com
https://bugzilla.mozilla.org/show_bug.cgi?id=1598562#c13
content-signature-2.cdn.mozilla.net
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
Known problems
Some breakage?
Try changing "network.http.referer.XOriginPolicy" from 2 to 1
Performance loss?
Not active currently, maybe in the future. You have to change these strings from false to true:
javascript.options.ion
javascript.options.baselinejit
javascript.options.native_regexp
Bugs with HTTP sites?
Due to fission is enabled, HTTP websites don't load when HTTPS only mode is activated . Consider disabling it. There are also issues with self signed certificates in HTTPS webs.
Thanks
I really thank the following authors:
- Arkenfox - The majority of this user.js.
- Tor Project - Some Tor Browser strings.
- Quindecim - Initial releases, unique strings and user design.
- LibreWolf - Some strings.
- Better-Fox - Some strings
- gallegonovato - For his suggestions and support.
- v1nc - For his user.js updater app.
License
GNU General Public License v3.0.
See LICENSE
for more details.