If it possible, how to change/substitute of user-agent for default Ubuntu GNOME Web browser?

1 Answer

1-st way (GUI):

1. Installing dconf Editor:

sudo apt update
sudo apt install dconf-editor -y

2. Run it:

$ dconf-editor

3. Go to:

/org/gnome/epiphany/web/user-agent

4. Switch Use default value to OFF

5. Insert Your custom user-agent string to Custom value field.

6. Close dconf Editor.

7. Chaeck Your user-agent with link:

2-nd way (Command-line):

1. To set use this command and replace YOUR_CUSTOM_USER_AGENT to your value:

gsettings set org.gnome.Epiphany.web:/org/gnome/epiphany/web/ user-agent 'YOUR_CUSTOM_USER_AGENT'

For Example:

gsettings set org.gnome.Epiphany.web:/org/gnome/epiphany/web/ user-agent 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36'

2. To check current user-agent value use command:

gsettings get org.gnome.Epiphany.web:/org/gnome/epiphany/web/ user-agent

3. To revert to the default user-agent:

gsettings reset org.gnome.Epiphany.web:/org/gnome/epiphany/web/ user-agent

Result: