There is no need to use uBOL on Firefox, just use the normal version.

EDIT: But yeah, the Mozilla reviewers are very hostile, also had to fight with them for one of my add-ons. It's ridiculous that spam and malware add-ons get a pass but privacy-conscious add-ons get rejected.

It's almost like ad monopoly company Google pays them millions of dollars.

Not everything is a conspiracy theory. Mozilla's reviewers were already infamous in the XUL era. Mozilla's dumbness is not due to Google it's due to them themselves.

One would think properly reviewing one of the most important addons in Firefox would warrant spending sufficient resources, which Mozilla seems to have for less impactful stuff.