In Google Chrome or Chromium at the Developer Tools / Settings / Devices there is a list of Emulated Devices. In it, is possible to edit, add or delete itens.
Where in the filesystem of the operating system this settings are located so I can backup, restore or manually edit all at once?
thank you very very much
It's located in preferences. More specifically, this file:
C:\Users\ **NameOfUser**\AppData\Local\Google\Chrome\User Data\ **Default**\Preferences
Default might be called Profile X where X is a number, depending on how many profiles were created or exists. (E.g. "Profile 2")
If you want to actually modify the file, you can open it up in Notepad and look for the phrase customEmulatedDeviceList
