Force a specific page to load with a specific size

I see that this issue came up 7 years ago and was declined, but lots has changed since then so I thought it wouldn't hurt to bring it up again.  I would love to be able to have either of these capabilities....

1) The ability to have the extension force all pages opened to open to a pre-set size by default or 

2) To have a URL list it keeps to know that when opening a specific page/site it always open that one page/site with a set size.