For me it's a long list of missing features (using Mac OS). * No Chromecast support * Missing pinch to zoom support (smooth as butter in Chrome). Possible via

For me it's a long list of missing features (using Mac OS). * No Chromecast support * Missing pinch to zoom support (smooth as butter in Chrome). Possible via Add-on "Multi-touch zoom" [1] in Fx but it's very sluggish. * Youtube is much slower, also some features don't work there, like being able to scroll down when having a fullscreen video open. Can be fixed by installing "Classic Youtube" [2] * Fullscreen is broken for me, I was not able to hide the address bar and tab bar. I had to install "Fullscreen Plus" * Some extensions don't work as good, like Dark Reader [3] * No good alternatives for some Chrome extensions, like "The Great Suspender" [4] or "Vanilla Cookie Manager" (Cookie AutoDelete for Firefox) * Pdfium performs much better than Firefox' solution. Unfortunately Mozilla abandoned Project Mortar [5]. I could go on with the list. Don't get me wrong, I will still stick to Firefox even though Google Chrome is the superior product performance- and feature-wise. [1] https://github.com/haxiomic https://github.com/haxiomic [2] https://addons.mozilla.org/en-US/firefox/addon/youtube-classic/ https://addons.mozilla.org/en-US/firefox/addon/youtube-class... [3] https://chrome.google.com/webstore/detail/dark-reader/eimadpbcbfnmbkopoojfekhnkhdbieeh?hl=en https://chrome.google.com/webstore/detail/dark-reader/eimadp... [4] https://chrome.google.com/webstore/detail/the-great-suspender/klbibkeccnjlkjkiokjodocebajanakg?hl=en https://chrome.google.com/webstore/detail/the-great-suspende... [5] https://wiki.mozilla.org/Mortar_Project https://wiki.mozilla.org/Mortar_Project