doesn't change tab icons for me

No problems, but a few features made me use Auto-tab discard instead of this:

1) No quick way to suspend tab - you need to right click, go to 'Total Suspender' then click on 'Suspend this tab' or something like that. I wanted a one-click solution.

2) No indication that tab is suspended. Auto-tab discard shows a dot on the tab.

3) White-list defaults to the exact URL. It would be nice if I could whitelist a complete domain without having to manually add it. Like right click, 'Whitelist this domain'.

If these are not issues for you then it works as advertised.