Harmokai

Harmokai lets you decide which extensions run on which websites, so you're not fighting with broken pages or leaking data to extensions that don't need to be active.

HOW IT WORKS

By default, Harmokai leaves all your extensions alone. You opt in by marking an extension as "managed". Once managed, you get two levels of control:

• Global — set a default on/off state that applies to every site.

• Per site — override the global setting for a specific site. Other sites keep using the global default. This means you can, for example, keep a translation extension off by default but turn it on only for foreign-language sites, or disable a dev-tools extension everywhere except localhost.