I used the Firefox extension "Scrapbook", until the switch to web extensions killed support for it.
It was quick. And it saved a local copy; no worry about stuff "going away". I might get back to it sooner, or I might a considerable time later. Regardless, it would be there.
Things like this differentiated Firefox and promoted much support of it from its user base.
In short, it's my god-damned client/user-agent, and it should do what I want.
(And I thank all the developers who helped enable that. It is, was their creation.)
I welcome progress. But, taking away useful features like this, does not feel like progress.
P.S. Yes, my thanks and all that, don't really suffice.
However all the credit and blame shakes out, we've got a composite medium that seems, in important aspects, to be becoming more transitory. Things disappear. It's harder to "keep up with the flow". Noise and rank-gaming and all.
And (thinking of another recent round of comments on Google search results), I guess search isn't "sexy" anymore. Not for Web content, at least.