Totally agree. But there is a difference between stable and dead. Bugfixes matter. Taking care of issues would mean that things like "FF 51 breaks the tooltips"

Totally agree. But there is a difference between stable and dead. Bugfixes matter. Taking care of issues would mean that things like "FF 51 breaks the tooltips" (fictional example) gets discovered and fixed. And one or two improvements a years also don't hurt.