Chromium

Table of Contents

1. Keybindings

  • <C-Tab> <C-S-Tab> rotate tabs
  • <C-w> close tab
  • <C-S-a> opens the search tabs dialog
  • <S-Esc> open browser task manager

2. Search

  • "word" to enforce the inclusion of the word
  • @history, @tabs, @bookmarks are available in the search bar.
  • another search engine can be added in the Settings > Search Engine tab.

3. Caret Mode

  • kuh-rey mode

It is a setting of a web browser that lets one navigate a website with cursor. It is toggled by F7 key.

4. Developer Tools

  • F12 to open
  • C-S-p to open command prompt.

5. Configurations

Configurations are stored in ~/.config/chromium/

5.1. Internal Pages

chome://chrome-urls shows all available URLs with chrome:// in front

chrome://version shows various version information

chrome://gpu shows the graphics information including the display server protocol.

chrome://flags controls the flags for the experimental features

  • chrome://device-log
  • chrome://flags

5.2. Inspect

  • The cookies are listed in Application > Storage > Cookies

6. Extension

An extension is identified by its public key. Private key can be generated by 

openssl genrsa 2048 | openssl pkcs8 -topk8 -nocrypt -out key.pem

and the corresponding public key can be exported with 

openssl rsa -in key.pem -pubout -outform DER | openssl base64 -A

This public key goes into the key field in the manifest.

The extension ID is the digest of private key generated by: 

openssl rsa -in key.pem -pubout -outform DER | shasum -a 256 | head -c32 | tr 0-9a-f a-p

7. CLI

7.1. Controls

  • --profile-directory=DIR sets the profile to the one stored under .config/chromium/DIR. For example the default value is --profile-directory=Default.
  • --incognito

7.2. Logging

  • Log does not show by default.
  • --enable-logging=stderr, and --v=1 if needed.

7.3. Sandbox

  • Chromium sandboxes the processes.
  • --no-sandbox disables it.

7.4. Ozone

The wayland backend of the chromium.

  • --enable-features=UseOzonePlatform
  • --ozone-platform-hint=auto, or --ozone-platform=wayland.

7.5. Protocols

  • --enable-quic --origin-to-force-quic=DOMAIN:PORT force HTTP/3 when connecting to the domain DOMAIN.

8. Reference

Author: Jeemin Kim

Created: 2026-08-09 Sun 07:11