Plymorph

Firefox remains a viable, tweakable alternative, but achieving the feature depth of Vivaldi—specifically vertical tabs, tab previews, and robust mouse gestures—is a persistent struggle.

Commenters are split on recent mobile developments. Some see recent 'Fennec' UI updates as substantial progress, while others point to fundamental, years-old gaps. Key figures like bubbalouie praise Firefox for being fast and highly customizable, while others, like clay_pidgin, aggressively demand parity with Vivaldi's advanced built-in tools. Furthermore, there is confusion over nomenclature, with ProdigalFrog clarifying that 'Fennec' is a specific F-Droid fork.

The raw view shows that while Firefox retains a strong user base loyal to its privacy stance—with [KarnaSubarna] noting Mozilla may still edge out Google Chrome on privacy despite funding gaps—the platform demands significant manual configuration. The core fault line is whether superficial UI tweaks can mask a lack of native, deeply integrated power-user functionality.