I only use Firefox for testing, not as my primary development browser - but they do have a number of visual editing tools built into Firefox Developer Edition t

I only use Firefox for testing, not as my primary development browser - but they do have a number of visual editing tools built into Firefox Developer Edition that may fit the bill for desktop users! https://www.mozilla.org/en-US/firefox/developer https://www.mozilla.org/en-US/firefox/developer