Previously, there was such a chrome extension when you could go to the site, let's say, from a mobile phone, but at the same time you go from a computer, an imitation of a mobile phone?

Question

Browser extensions

This extension allowed me to access the site from different platforms. The extension simulated entry from different devices, for example, if you wanted to enter the site and get to the mobile version of the site, when you logged in from a computer, then select the mobile item in the extension, and the mobile version of the site was automatically launched.

Answer 1

Through Chrome, the developer tool did the same.