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thorium-mirror/README.md
Alexander David Frick 50d28a8ee0
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Thorium

Chromium fork for linux named after radioactive element No. 90

  • Always built with latest x64 tip-o-tree "Trunk" build of chromium \
  • Intended to behave the most like Google Chrome, with differences listed below. \

  – Includes Widevine, ffmpeg, chrome plugins, as well as thinLTO and PGO compiler optimizations. It is built with SSE3 and AVX, so it won't launch on CPU's below 2nd gen Core or AMD FX but benefits from Advanced Vector EXtensions. You can disable this and use regular SSE3 like chromium and chrome. (See below.)

EXPERIMENTAL FEATURES/DIFFERENCES BETWEEN CHROMIUM AND THORIUM

  • Experimental MPEG-DASH.
  • Experimental PDF annotation support (called "Ink" on ChromiumOS).
  • Patches from Debian including font rendering patch, VAAPI Patch, native notifications patch, title bar patch, and... the VDPAU Patch!! (Rejoice NVidia users)
  • DoH (DNS over HTTPS) patches from Bromite.
  • Includes DuckDuckGo and Ask.com in all locales.
  • Logo and Branding/Naming changed to Thorium logo, Thorium name, and "Thorium Authors" being appended to The Chromium Authors in credits.

  – args.gn exclude API Keys (you can get them yourself) and the pgo profile path is different for each chromium version. (See below.)

  In general follow build instructions at https://chromium.googlesource.com/chromium/src/+/refs/heads/main/docs/linux/build_instructions.md and API Keys (if desired) at https://www.chromium.org/developers/how-tos/api-keys

Building

The scripts assume the chromium source is at $HOME/chromiums/src/. You may have to sudo chmod +x the scripts to make them executable.

  • After initial download of source code, run (from where you cloned this repo) trunk.sh. This will update and sync the sources and at the end it will download the PGO profile for chromium. The file will be downloaded to //chromium/src/chrome/build/pgo_profiles/*.profdata with the actual file name looking something like 'chrome-linux-main-1632505958-ddbb37bcdfa7dbd7b10cf3a9b6a5bc45e7a958a6.profdata', which should be added to the end of args.gn as per below.
  • Then (from where you cloned this repo) run setup.sh. This will copy all the files and patches to the needed locations.
  • Run gn args out/thorium and the contents of args.gn in this repo should be copy/pasted --Include your api keys here at the top or leave blank, and edit the last line to point to the actual path and file name file name of '.profdata'.*
  • To build, run autoninja -j8 -C out/thorium chrome chrome_sandbox content_shell -d stats The -j# can be changed to limit or increase the number of jobs (generally should be the number of CPU cores on your machine), and the -d stats at the end just shows better verbose stats during compiling. You could also append chromedriver after content_shell to build chromedriver, the selenium compatible browser fuzzing library.
  • To install, copy/paste the contents of your out/thorium dir to a good location i.e. $HOME/bin/thorium. RECOMMENDED - Copy and run clean.sh within this dir to clean up build artifacts. Then you can just run the browser with ~/bin/thorium/chrome or the content_shell with ~/bin/thorium/content_shell.
  • Proper Install: To install with a deb, dont copy out/thorium, instead run autoninja -C out/thorium/ "chrome/installer/linux:unstable_deb" A nice .deb file will now be in out/thorium and you can install it with sudo dpkg --install *.deb It will be called chromium-browser-unstable, but the .debs in the releases section are just renamed to thorium-browser.
  • NOTE: To get back to "Trunk", i.e. revert all changes in order to build vanilla chromium, just run trunk.sh again.
  • NOTE: To compile without AVX, simply go to //chromium/src/build/config/compiler/BUILD.gn, search for mavx (theres only two lines), and replace mavx with msse3.

−Thanks to https://github.com/robrich999/ for some info that went into this project.
−Also thanks to https://github.com/bromite/bromite and https://github.com/saiarcot895/chromium-ubuntu-build for patch code.

   Note: libpepflashplayer.so is included for posterity and can be used to enable Adobe Flash on older Chromium releases. ʘ‿ʘ