I never really found a use for this. Do people really need so many tabs open they have to sort them?
yes
Just did a rough estimate and I have approximately 200 tabs currently open in Firefox on my work laptop.
Of those which were opened more than 1 hour ago, how many have you used in the last hour, would you suppose?
In the last hour? I just started work an hour ago, so like 4.

So the other 196 are sort of, things you’re not working on, but haven’t really done with, and might need again?

I think most people use some combination of notes, bookmarks, history, and search to manage this.

I’m not most people

Obviously.

I’m not being critical. More power to you.

I know there’s lots of people that use lots of tabs and I’m just trying to understand how it works.

Honestly I might dispute your assertion that “most people” are doing anything different. IME, people are generally pretty disorganized.

A bold assertion good sir, and one we can test:

telemetry.mozilla.org/new-pipeline/dist.html#!cum…

I’m on mobile but if that data is showing what I think it is, the median “Max tabs per session” is 4? Less than I expected? That’s firefox nightly too, which I would expect to skew more towards excessive tabs than the main releases.

Also… someone has more than 7,000 tabs open?

Measurement Dashboard