I think errorception filters out most exception errors automatically [I'm not affiliated with them in any way, not even a customer].
Another option could be to disable all inline scripts via CSP, which will hit the older generation of Chrome extensions (and I think the newer ones doesn't trigger onerror).
Another option could be to disable all inline scripts via CSP, which will hit the older generation of Chrome extensions (and I think the newer ones doesn't trigger onerror).