Multi Links, dead since 2011, is an extension that did what this does, except would open links in the order you dragged them, so you could go right to left, and the first opened tab would contain the rightmost link, because you dragged over it first. This is the only flaw of this extension, as far as I can see. Adding this ability, at least as a toggle, would make it perfect for me.
TO USER: Best of I used!! already: custom key to hold TBC : delay in opening! delay in opening! delay in opening! waiting so long~~~ source: [Feature Request: Optional Delay For Opening Each New Tab · Issue #114 · cpriest/SnapLinksPlus](https://github.com/cpriest/SnapLinksPlus/issues/114)