Yettwasezmel 5 ɣef 5 n yetran

sɛur cy1 di March 10, 2016 · aseɣwen yezgan

This does exactly what it says. It reloads the page, when the error page displays. Very configurable, nothing unintuitive, very permissive, nothing obtrusive or overcomplicated.

That "Tab Mix Plus" guy forgot to mention his so-called essential addon does everything except reload tabs on error.