It is still possible. See https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme#user-content-multirow-tabs-and-other-functions https://github.com/Izheil

It is still possible. See https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Theme#user-content-multirow-tabs-and-other-functions https://github.com/Izheil/Quantum-Nox-Firefox-Dark-Full-Them... Design-wise, it's still a more sane layout than the single row scrolling on overflow. It's also the solution most other programs and GUI toolkits use, with browsers being the exception I can't explain.