I mentioned Brendan specifically because people like to lump in his flaws as reasons for not using brave in these discussions.

True. His name didn’t stick with me as his controversies and the fact that he is co-founder and CEO of Brave weren’t necessarily a reasons I would forego Brave for. Feelings have to be put aside IMO in favor of merits.

Firefox used to have xulrunner and prism to provide them but now Firefox doesn’t provide a way other than a JavaScript popup via bookmarklet.

It’s really unfortunate that Firefox did this. This is actually one of the reasons why I like to have a Chromium-based browser around. I might eventually switch over to Epiphany for that.