In a moment of madness, I decided to RTFM the latest Mozilla Firefox Feature List and came across this nifty ability called “Pin as App”.

nawww baby tabs!

It’s pretty handy, I’m using it to maintain tabs of commonly access websites or web applications that I need many times a day, easy to find since it’s always on the left in the defined order, and much smaller than the full tab size.

Only issue is that you need your remote site/app to have a decent favicon – if they don’t, you’ll just end up with a dashed square placeholder and there’s no way in Firefox to set a custom icon for that pin that I can see.