The way you word it suggests that donations to Mozilla are expressly forbidden from being spent on Firefox. Which I doubt is true.

But yes, many would prefer to donate specifically for Firefox development than into a general pool for Mozilla to allocate as they choose.

My brain skipped as I read Brennan and tabletop in the same sentence and jumped to Dropout/Dimension 20.

Marginal at best when everything is made elsewhere and requires fossil fuels for transport.