In Firefox 61.0.1, with Tree Style Tabs 2.4.24, and UnloadTabs 0.8.1, the "Dim unloaded tabs" checkbox works as expected at first. But after exiting and restarting the browser it loses its effect until I go back into the extension preferences to uncheck the checkbox and check it again.
In Firefox 61.0.1, with Tree Style Tabs 2.4.24, and UnloadTabs 0.8.1, the "Dim unloaded tabs" checkbox works as expected at first. But after exiting and restarting the browser it loses its effect until I go back into the extension preferences to uncheck the checkbox and check it again.