kevinp_123 said

this is the problem, Mozilla Firefox Responsive Design Mode can't be fully responsive like a cellphone, but Google Chrome can do it, the touch looks like (and) functions like a normal computer, unlike cellphones.

Hello kevinp_123,

Would you please take a look at this bug report :

https://bugzilla.mozilla.org/show_bug.cgi?id=1282089

If you want to, you could vote to show your interest for that bug report :

https://bugzilla.mozilla.org/page.cgi?id=voting.html

Also see : https://superuser.com/questions/1172902/how-to-turn-on-firefoxs-responsive-design-modes-touch-simulator

See also:

• Bug 1401304 - (rdm-touch) [meta] Touch simulation

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)