ChromX (Chromium OS), Exton Build 190824, with Netflix, Spotify, Gimp and a lot of other apps working fast and responsive (after you have installed Flatpak – “An app store and build service for Linux”)

Have I got news for you! Netflix works in ChromX Build 190824 after installing Firefox ESR!
Do it like this:
1. Enable Linux (BETA) as this screenshot shows – see below under How to use Flatpak
2. Run the command sudo apt install firefox-esr in the terminal window. Version 60.8.0 of Firefox ESR will be installed
3. Open Firefox ESR. It will complain about the fact that you’re running an old version of Firefox. Just ignore the message and go to Firefox Preferences and enable DRM Content as this screenshot shows.
4. Go to and log in. You’ll have to have a paid account of course. Everything will work as this screenshot shows. Very good video and sound quality btw.
NOTE: The “screenshots” above are pictures taken with my mobile phone. You can’t use Prt Sc when running an application installed with Flatpak or with a terminal command.

So now you can use ChromX (Chromium OS) in the same way as a Chromebook.

About ChromX

I have compiled Chromium OS from source for the fourth time. Chromium OS is an open-source project that aims to build an operating system that provides a fast, simple, and more secure computing experience for people who spend most of their time on the web. My Chromium OS Build 190824 is for all 64 bit “normal” Desktop computers and laptops. If you have unusual hardware you could check out ArnoldTheBat’s special Chromium OS builds.

Most important changes
This version (190824) replaces version 181218. You can now use Flatpak to install Spotify and many other nice/necessary apps. Read below about how to use Flatpak.

How do I run Chromium OS?
Normally you run Chromium OS from a USB stick, but the system can also be installed to hard drive. Could be useful if you want to bring new life to an old computer. Be aware of the fact that Chromium OS can’t be installed together with other Linux systems (or any other OS). It will “take” the whole disk.

The difference between Chromium OS and Google Chrome OS
Chromium OS is the open source project, used primarily by developers, with code that is available for anyone to checkout, modify, and build.
Google Chrome OS is the Google product that OEMs ship on Chromebooks for general consumer use.

Used kernel

Install my Build 190824 to a USB stick of at least 16 GB
A. In Windows you can use Rufus 3.6. It will look like this. (Unzip first).

USB installation in Linux
In Linux you shall open up a terminal and run this command: sudo dd if=chromiumos-amd64-exton-build-dev-4700mb-190823.img of=/dev/sdX bs=4M
(You shall of course replace /dev/sdX with for example /dev/sdb or /dev/sdc. Check it carefully before you run the above command in order to avoid data losses).

IMPORTANT Notes about USB sticks
You must use the best (fastest) USB stick you can get. Using a bad (old) stick won’t work. It appears that not all USB sticks are suitable for topical purposes. I.e. they can not be made bootable or they isn’t fast enough for Chromium OS to run smoothly. I myself have experience of brands Kingston DataTraveler, SanDisk Ultra USB 3.0, SanDisk Extreme USB 3.0 and Sony Micro Vault. The first three works (for me). You shall not use USB sticks of older model. They may work, but mostly bad. If you – after the installation of Chromium OS to the USB stick – get different error messages when you try to run the system from the stick it is often because the stick is not “good enough”. It can also happen that you can’t enable Linux BETA if your stick is “bad”/slow. This means that you can’t install Spotify and other nice apps with Flatpak. I recommend that you use SanDisk Extreme.

Install to hard drive
If you want to install the system to your hard drive, follow the instructions here and here. Beware of the warnings noted in the links! When prompted for a password for the chronos user, use “exton” (without the quotes!).

USB persistence
All your system changes will (of course) be automatically saved directly on the USB stick.

You do not have to take any action in order to keep your system up to date. Chromium OS will itself check for updates each time it is launched and automatically install them.

How to use Flatpak
Follow this instruction:
1. Go to chrome://settings in Chromium
2. Enable Linux (BETA) as this screenshot shows. A terminal window will open if the installation is successful. The installation can take up to 10 minutes. If you get errors your USB stick may not be good enough. Reboot and try again. You may have to remove Linux and reinstall. If nothing helps you should try with a new better USB stick.
3. Install Flatpak with the command sudo apt install flatpak as this screenshot shows.
4. When Flatpak is installed you can install many useful apps such as Spotify and Gimp. Go to Flathub using Chromium. Search for Adobe Flash, Spotify and Gimp. Copy respective Download link (Install) and get each install script with Wget. Example command: wget
5. Install Spotify with the command sudo flatpak install com.spotify.Client.flatpakref. Possibly you should first install Adobe Flash with the command sudo flatpak install com.adobe.Flash-Player-projector.flatpakref
6. Then just go on and install all other apps you want from Flathub. This it how it looks there – screenshot. Install the apps you want in the same way as I’ve described above.

You cannot run Netflix in the Chromium Browser. But after installing Firefox ESR – see above – Netflix works very well!

Increase the size of the system partition
The system is of about 4GB and the system partition of about 3GB. This means that you’ll only have about 1GB for new installations etc. if you don’t do anything. I.e. if you use a card of 32GB about 27GB will be unused. You can however get rid of the 1GB limit after installing ChromX in Linux with the install command or in Windows using Rufus.
– start up Ubuntu or another Linux system – you can also use a Linux Live CD/USB stick
– start GParted – screenshot before resizing
– screenshot after resizing

Why should I use ChromX?
They are many Chromium OS builds out there. Many more mature and ready to go than ChromX. For example CloudReady. ChromX Build 190824 is nevertheless more fun to use in my opinion. Using Flatpak you can tailor the Chromium OS system according to your needs.

SCREENSHOTS when ChromX is running
1. Installing Flatpak
2. Installing Linux BETA (a Debian system)
3. Installing Spotify
4. Installing Gimp
5. ChromX Desktop (you can use any picture you have on your computer as wallpaper)



Chromium OS Exton Build 190824 can also be downloaded from The Swedish Linux Society.

Unpack with 7zip and you will get the file chromiumos-amd64-exton-build-dev-4700mb-190823.img (which you shall install to a USB stick).


Read about my Android-x86 Systems – 10, Pie, Oreo, Nougat, Marshmallow, Lollipop and KitKat at – latest is AndEX 10 (with GAPPS) and AndEX Pie 9.0 (also with GAPPS)!
about my Pie, Oreo, Nougat, Marshmallow and Lollipop versions for Raspberry Pi 3/2 at – latest is RaspAnd Pie 9.0 (without GAPPS) and RaspAnd Oreo 8.1 (with GAPPS)!