That’s still only testing one browser, unfortunately, and especially for mobile, Firefox is a very small percentage of users
You ideally need to test Chrome, Safari & Firefox as the bare minimum, at least the latest Samsung browser is a good idea too as it’s often based on an old version of chrome. Thankfully IE has dropped off the list for most engineers now.
That’s still only testing one browser, unfortunately, and especially for mobile, Firefox is a very small percentage of users
You ideally need to test Chrome, Safari & Firefox as the bare minimum, at least the latest Samsung browser is a good idea too as it’s often based on an old version of chrome. Thankfully IE has dropped off the list for most engineers now.