- The freedom to run the Browser as you wish for any purpose is given in Vivaldi more than in any other existing browser
- Same for study how it works and change it to your wish, the source code is available
- Redistribute isn't allowed, but with already over 100 different browsers, most Chromiums, the need of it is anyway pretty debatable.
- You are free to distribute your mods to other Vivaldi users, the Forum is full of it. As said, the Source is modificable by the user to his like (naturally at own risk, but it isn't avoided by Vivaldi, they show you even how).
Currently there are 4 Millon users of Vivaldi and with all the possibiñities to customize the browser, there are no 2 users with the same.