OK, silly question - is there a good plugin out there for Firefox that will block navigation to a site and present a message that says something like "Hey are you sure you want to go here right now? Or are you just doing this reflexively?"
I realized recently that I've been visiting old sites purely out of habit but I'm not really getting anything good from them anymore. I'd like to add a road block that helps remind me to think about that to break that habit.
@pseudoramble (It's also achievable through a rule in uBlock Origin, using the mechanism that it uses for tracker sites - which presents an interstitial telling you that it was blocked, and whether you want to proceed)