As a general statement i emphatically support & prefer FOSS over proprietary closed-source software. That said, i also do not believe in cutting off my nose to spite my face, ie, i am willing to consider potential case by case individual exceptions. Primary of these for me is Vivaldi. My reasons for being an enthusiastic user of it include:
- Founded & owned by the co-founders of Opera Presto.
- Pre-eminent user customisability & configurability. There is nothing else like it already, with much more still coming.
- Compatibility with Chrome Extensions. Yes some don’t work yet, but a large number do. I have 22 installed, & i actively use 16. Over time, the number of extensions i need shrinks, as more & more such functions become incorporated into the base code.
- Security & Privacy. I offer you these links, with some text extracts fyi:
https://vivaldi.com/privacy/websites/
At Vivaldi Technologies AS (“Vivaldi”), protecting your privacy is one of our top priorities. We strictly protect the security of your personal information within Vivaldi’s websites. We do not share or sell your data with any third parties and protect user data from disclosure, with exceptions only requested by law or court order.
https://www.reddit.com/r/vivaldibrowser/comments/68n8w1/vivaldi_privacy/dh1gwag/
No, we do not share any data with Google knowingly (except for search and search suggestions). We use the Chromium code base and there are some “call home” for various things there, but we believe we have plugged all those holes. If we missed something, it would be a bug.
https://vivaldi.com/privacy/browser/
Your browsing history such as visited URLs, typed search keywords and downloaded content are stored in your client profile and only accessible by your own action. Vivaldi AS has no access to this data. Your history cannot be shared unless it is by your own action.
http://tiamarth.com/writ/vivaldi_not_open_source
Here is Jon von Tetzchner, Vivaldi’s CEO, on the subject.
As long as you know where it’s located on your system, and as long as you know CSS and Javascript, there’s nothing stopping you from reading and modifying the source as you see fit. Not only is it possible, but there’s a subforum on the official Vivaldi forums for user modifications, and people are making modifications all the time.
I would not use any software no matter how great its features, if i harboured serious doubts as to my data integrity &/or privacy. Vivaldi’s ownership pedigree, & its specific policies on user privacy & code accessibility] entirely assuaged any concerns i had, some years ago. I am hence a very pleased Vivaldi browser user; its outstanding capabilities manifestly assist my daily workflow.
It was for these reasons i wrote what i wrote in my earlier post.