[URGENT!!!!] Revert 1.15.3

[Backfire235]

https://github.com/zen-browser/desktop/releases/tag/1.15.3b

Hello dear dev team, I love your product very much, but:

"Wheel clicking on a pending pinned tab will now close it." is there a way to revert this "feature" (aka malware)? it's AWFUL

[Thinkseal]

I believe it is this option in about:config but idk since I did not update to 1.15.3b and it has now been taken down due to a bug probably
If it is not this option, it is probably a similarly named one