When comparing SeaMonkey vs Falkon, the Slant community recommends Falkon for most people. In the question“What are the best desktop web browsers?” Falkon is ranked 11th while SeaMonkey is ranked 15th.
Ranked in these QuestionsQuestion Ranking
Pro Full internet suite
Wraps all your internet stuff together. It's like it's Firefox and Thunderbird all wrapped into one, and it kinda is. It's the continuation of the project both of those were extracted from.
Pro Not bloatware
Pro Designed for usability, not looks
Con Looks very old and outdated
Con Bloated with unnecessary features
Seamonkey has a browser, email client, and even an IRC chat. Too much bloat! It doesn't do one thing, let alone do anything well. It should be avoided.
Con No Addons
not a single adblocker or privacy addon that was useful
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 Weak multimedia support
It has some issues with multimedia content eg. Non-playing videos on webpages.