Blackbox Chrome Extension Scripts
When using the Sources panel of Chrome DevTools to step through code, sometimes you pause on code that you don't recognize. You're probably paused on the code of one of the Chrome Extensions that you've installed. To never pause on extension code:
Press F1 to open Settings. Or click Settings .
Open the Blackboxing tab.
Enable the Blackbox content scripts checkbox.
Figure 1. Enabling the Blackbox content scripts checkbox