Please support old web browser versions for all eternity.

I hate it when I open a site like SoundCloud one day and am greeted with a "we no longer support your browser" notice. Now I am forced to update my browser to a new version with removed features. On Android, Chrome sometimes crashes due to an apparent memory leak, so I have to go back to Samsung Internet, which does not work with some sites. Also, the Samsung clipboard manager (which can hold up to 20 items) is only available on Samsung Internet, not Chrome or Firefox.
I also have to update the browser on my live USB bootable stick because sites stop supporting it. Any browser starting in 2015 (ECMA script 6) should be supported until at least 2050 so that I never have to fear that a site one day spontaneously stops working on my browser.

I would like to browse the Internet forever without having to ever worry about pages to stop working one day. Browser vendors might also deprecate support for devices and operating systems. Old devices also have replaceable batteries and are easier to repair. I don't want be forced to buy new devices that are difficult and expensive to repair.

The trend of mobile browser URL bars only showing the domain name and hiding the rest of the URL needs to stop.

This trend appears to have been introduced by, guess who, Apple with iOS 7, and Samsung has copied it to their browser to look oh-so-"minimalistic", even though it has no benefits at all.
Even desktop browser Opera had this bad design at some point.