I have a rented VPS whose main two uses are being my IRC host (irssi running in a tmux) and hosting my Git repository containing the pass password store. As long as only I can SSH into the VPS, my encrypted password collection won't leak; as long as there is no keylogger or clipboard logger on the machines I use pass on, my passwords are secure. (I assume that SSH and GPG are unbreakable, which seems good enough of an assumption for the time being. Perhaps I'll switch to passage instead of pass some time in the future.)
I tend to navigate by URL or browser history, so I just don't enter phishing URLs.
An extension could save my ass in the scenario where a legit site (e.g. a shop) has been compromised and the redirect to payment services has been replaced with a malicious site, but I don't believe that's very common?