A/B Extension Switcher

A/B Extension Switcher gives you one-click control over which extensions are running. Any extension you enable normally stays active on both sides — you don't have to configure anything. Only the extensions you specifically assign to a group in the options will switch: the ones you put in Side A run on A, the ones in Side B run on B, and everything else keeps running either way. The two sides are mutually exclusive, so switching to one automatically turns the other off. Your always-on extensions keep running the whole time. The toolbar icon shows the active side at a glance — A or B. Click to switch; click again to go back. Perfect for keeping your essential extensions running while swapping heavier or situational ones in and out — separating work and personal setups, testing one configuration against another, or isolating extensions without touching your core tools.