At this stage, this little extension has been going for a few years.
We've been making some incremental tweaks, improving reliability and speed, as well as adding some new features to scratch our own itches, such as:
The tabbing flow now makes sense in the extension. When you open it, the search input is focused. When you search for something and find it, pressing tab focuses the switch, and lets you toggle the extension on or off with a push of the spacebar!