I wish I could use Vivaldi, it seems like a nice browser for power users. Unfortunately it's closed source (besides the Webkit parts). Considering how much sensitive information goes through a browser nowadays, I would never consider something closed source.

I'm sure Vivaldi has no intentions of becoming "evil" like Google, but because of its closed source nature it wouldn't be hard to slip a tracker or two in the browser and regular users would be none the wiser.

I don't know what browser you're using, but assuming chrome : it's not open source either. Chromium is open source, but Google Chrome is proprietary, much in the same way vivaldi is.

If you want a truly open source modern browser, the only options are chromium or firefox these days, AFAIK ? (If you know an alternative I'm interested !)

482794793792894

And Chromium as an open-source project is known to contain trackers. Well, known by some people at least. Here's a fork trying to fix that: https://github.com/Eloston/ungoogled-chromium

As for other modern open-source browsers, http://otter-browser.org/ is still in relatively early development AFAIK, but sort of like Vivaldi, it's trying to recreate Opera 12.