A brutally simple browser extension that targets Firefox meant to be a replica of Chrome's tab switcher. Quickly open, search, then switch to any open tab.
hypertab-demo.mp4
Open tab search with ⌘ + Shift + E (it would be A, but Firefox uses this for add-on management). Search is automatically focused so you should be able to type some fuzzy search and immediately narrow down what you're looking for.
Switching from Chrome to Firefox is mostly fine. But Firefox's current "story" for navigating between tabs is really sub-par (IMO). This extension, for me, implements a must have feature for any browser I am using: Quick tab search and switch.
You're probably here to make sure this extension isn't doing anything sneak, right? Good for you, everyone who is able to understand code should do this. Have a look around and see for yourself. But, I will save you a bunch of time: this browser extension does not persist anything and does not talk to any servers; it doesn't need to!