A little late to the party, but I really appreciate this tool. Hopefully the other browsers will be supported soon! Relegating folks to Chrome is understandable, but still a bummer.
How about making it a desktop app like Scatter has done? Better yet, get with Nathan James and integrate them somehow?

I've supported @aggroed with my witness since he got started. Thanks for highlighting your work here, as well as @stoodkev. Both of you were just added. We'd like to use something like this and Scatter for subscription services on @TIMM and @Scripsio. It's easier said than done.