When comparing Falkon vs Opera Neon, the Slant community recommends Falkon for most people. In the question“What are the best desktop web browsers?” Falkon is ranked 19th while Opera Neon is ranked 26th.
Ranked in these QuestionsQuestion Ranking
Pro Futuristic interface
Opera Neon innovates with its clean aesthetic pleasing interface.
Con Now under the KDE umbrella
Qupzilla is now discontinued and renamed to Falkon. It will also now be a part of KDE and will probably need more dependencies like kde-frameworks in the future.
Con Bookmark management not the strongest part
It often requires quite a lot of clicks to add and remove bookmarks.
Con Same security-holes as Chrome
Falkon uses the same browser engine as Chrome, meaning it has the same security-holes as Chrome. Chrome is a big target for hackers (being the most commonly used browser). A webpage that will hack Chrome will likely hack Falkon.
Con Not meant for general use
This browser is not meant for general use. It only exists, because the Opera developers had some ideas for the user-interface, and wanted their users' feedback. If you want a browser that you can use day-to-day, something with bookmarks and security updates, look elsewhere.
Con Bad UX
The usability is not the best since the left and right bar take up space and there is no way to resize them.
Con Never Updated
The Opera folks came out with a browser I loved as an experiment - and then they essentially abandoned it. It really was great, but since they never planned to support/update it and it's closed-source, I can't recommend it.