Came across the following image while reviewing all project notes today. It is an early mock-up, done in GIMP, depicting what the browser extension could look like.
The Good News
All of that functionality is present in the current, working version of the prototype. (See image below.) The features set is not determined; but, the basic design has emerged.
The Bad News
That first image was created in June of last year, maybe earlier that. Seven months from sketch to prototype, and much still to do with the prototype.