Librewolf is exactly what Firefox should be.
To the point where I find in #Librewolf new features I was explicitly missing in #firefox (like clicking on the lock to enable/disable cookies for a specific website)
And, yet, it works perfectly in #debian thanks to extrepo. But, seriously, it should be considered as the default Debian browser.
Congratulations to the team!
Don’t wait on Mozilla, switch to Librewolf !