Well, in case you decide to move back, give Sidebery a try. I switched a while back haven't had any issues.

I second this. I've had the very rare message saying the tab tree has gotten out of sync (always as a consequence of me moving tabs between incognito windows), but the first time it happened clicking the message refreshed the tab tree successfully; the second time it didn't but toggling the sidebar off and on fixed it. I've had no problems with stability.

And to me the context menu option to unload tabs is a killer feature.

So, if I understood you correct, you had issues with TST and instead of disabling TST, you went for Chrome?

It became slow and the only reason that was keeping me in Firefox (TST) started getting more and more broken so I switched. I used to be so vocal about TST back in the days that I’m probably the reason you use it btw.

I see.

I still manage to use TST, but part of my reason for using Firefox is just because I don't want to use anything Chromium based.

Oh, and also I don't really want to support Mozilla either so I am experimenting with LibreWolf as my secondary browser and so far it has been great.

They want a good tab manager... so they changed because the one they tried for Firefox did not work.

Over to Chrome that - as far as I have found - is worse off than Firefox in all possible ways when it comes to tab management?

Have I missed something?