I am curious why Librewolf isn’t for you?

Overall I’ve had no issue with librewolf. It’s runs just like Firefox without some of the bloat. The very few sites I’ve found don’t work, don’t work on FF either (usually payment/online stores with popups and shit). Download whatever extension, change the settings and even sign into Firefox cloud. Yes, you’ll make your “fingerprint” more unique but, the other security improvemts/defaults make it a worthy trade off.

Biggest annoyance is by default cookies/logged in sites are wiped on close. That can easily be changed globally, or white list what you want to save site settings for. Signing out of websites is a good habit anyway, especially ones with payment attached.

The neat part is there’s a lot options to pick from, some of them are doing cool things like the one outta Japan Floorp looks interesting.