Chromium is the open source version of Google's Chrome web browser. It features a minimal user interface, powerful web development tools, and a built in task manager. The Chromium Project is at the forefront of implementing new web standards.
Because Chromium is open source it is legally unable to include several features that the proprietary Google Chrome browser includes by default. Namely automatic updates and the integration of Adobe's Flash Player. A complete list of the differences can be found in the chromium repository.
There are many linguas available via USE_EXPAND in Chromium. So many, in fact, that the Wiki cannot display all of them. For a full list of linguas run:
equery u www-client/chromium | grep l10n
The equery tools comes as part of the app-portage/gentoolkit package. It will need to be installed in order to use the above command.
USE flags for www-client/chromium Open-source version of Google Chrome web browser
||Split build into more shared libraries to speed up linking. Mostly intended for debugging and development, NOT RECOMMENDED for general use.|
||Add support for CUPS (Common Unix Printing System)|
||Build with user-specified CFLAGS (unsupported)|
||Enable support for Google Hangouts features such as screen sharing|
||Build Ozone only with headless backend, NOT RECOMMENDED for general use.|
||Add kerberos support|
||Enable Official build instead of Developer build.|
||Disable optimized assembly code that is not PIC friendly|
||Enable codecs for patent-encumbered audio and video formats.|
||Add support for PulseAudio sound server|
||Enable support for remote desktop and screen cast using media-video/pipewire|
||!!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur|
||Build the SUID sandbox, which is only needed on CONFIG_USER_NS=n kernels|
||Use system ffmpeg instead of the bundled one|
||Use system icu instead of the bundled one|
||Enable Video Acceleration API for hardware decoding|
||Enable dev-libs/wayland backend|
||Unsupported closed-source DRM capability (required by Netflix VOD)|
icu USE flag
To avoid an emerge slot conflict with dev-libs/libxml2, which prevents Chromium to be emerged,
icuUSE flag must be set in /etc/portage/make.conf. If
icuis newly set, update the system before emerging Chromium by issuing:
emerge --ask --update --deep --newuse @world
Be aware that compiling Chromium can take a significant amount of real time, CPU time, and system memory. Allow 2Gb of RAM per each make thread (as defined by MAKEOPTS, see this post). It is probably not a good idea to build Chromium when the system is under heavy load.
After setting USE flags as desired, emerge Chromium with the following command:
emerge --ask www-client/chromium
Chromium's visual output is generally disconnected from a Desktop environment's DPI scaling. It can be instructed to start in a scaled mode by using the
--force-device-scale-factor command-line option. This option can be passed a integer or decimal value. Standard scaling begins at 1.0. For example, to make Chromium's UI 1.5x larger:
A full list of command-line switches can be found here.
Native Wayland support
chromium --enable-features=UseOzonePlatform --ozone-platform=wayland
To set Chromium to start every time using the Wayland backend, append the following lines the user's Chromium configuration file:
Much like Firefox, Chromium has many internal Chrome URLs (special pages) that are used for additional configuration, troubleshooting, task management, etc. An exhaustive list of special pages can be accessed by navigating to:
Prominent special pages include:
chrome://components/- Shows enabled components and provides a button to check for updates for each of them. It is sometimes necessary to manually update the PPAPI Adobe flash module via this interfaces when using Chrome.
chrome://chrome/- Displays the About page which includes version information.
chrome://extensions/- A page to manage extensions.
chrome://flags/- Enable/disable experimental features.
chrome://flash/- Displays special information about the Adobe Flash Player (if it is accessible by Chromium).
chrome://gpu/- Displays information about use of graphics acceleration.
chrome://history/- Displays web history. Also accessible through the sandwich menu or by pressing Ctrl+h.
chrome://memory-redirect/- Measure the memory usage of the browser and per-tab usage.
chrome://net-internals/- Lots of information on network connections.
chrome://plugins/- Shows a list of plugins. Enable/disable them from this interface. (Deprecated in Chrome version 57.)
chrome://version/- Displays more version information than the
Occasionally tabs in Chromium crash. This can be caused by quite a few things, however one of the most common reason for occurrence is that the system is running low on memory. On Gentoo, this can especially happen if the system is compiling a www-client/chromium package update while running Chromium.
The free command can be used to see how much memory is available on the system:
total used free shared buff/cache available Mem: 15G 11G 735M 789M 3.4G 3.1G
The solution to is to free up memory until the large package compiles have finished. Open a resource monitor of choice and kill applications using large amounts of memory.