Originally it was used as a hex to dispel demons.
Using it on a person is telling that person that you believe they are a demon that needs to be cast back into hell.
So how offensive it is honestly depends on who’s doing it.
The tatted out meth head with four teeth? Not offensive at all.
Kindly old church lady with a heart of gold and an apple pie in every pocket? 100,000 out of 5 offensive
I used it for a while. It honestly was a really good browser for a long time but since everything started going this shit it quickly fell from my good graces.
The only time I even think of missing it is when I have to open a page that is optimized against Firefox on purpose because the developers decided to use some janky Javascript plugin and didn’t test.