Firefox now has Terms of Use! This'll go over like a lead balloon.
> You give Mozilla all rights necessary to operate Firefox, including processing data as we describe in the Firefox Privacy Notice, as well as acting on your behalf to help you navigate the internet. When you **upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information** to help you navigate, experience, and interact with online content as you indicate with your use of Firefox.
https://www.mozilla.org/en-US/about/legal/terms/firefox/
**Update:** See below in the thread for their clarification.
Vivaldi use default Bookmarks and search engines (Startpage, DDG, Ecosia, Qwant and some others), which pay an revenue if the user optional use these (anonym), apart accept donations and there is also an Merch Store. So it avoid third party investors, ads and tracking and so it stay independent, no needs to share user data with third parties. You can delete all these bookmarks and Search engines if you don’t use these, using others to your like (easy to add with the context menu). All this permits to support the additional services which has the user with his account, own Webmail (5GB), Blog page, Calendar, Feed, mail client, sync ee2e of all browser data, settings, bookmarks, extensions…, apart permit to participate in the Vivaldi instance in Mastodon.
Vivaldi use default Bookmarks and search engines (Startpage, DDG, Ecosia, Qwant and some others), which pay an revenue if the user optional use these (anonym), apart accept donations and there is also an Merch Store. So it avoid third party investors, ads and tracking and so it stay independent, no needs to share user data with third parties. You can delete all these bookmarks and Search engines if you don’t use these, using others to your like (easy to add with the context menu). All this permits to support the additional services which has the user with his account, own Webmail (5GB), Blog page, Calendar, Feed, mail client, sync ee2e of all browser data, settings, bookmarks, extensions…, apart permit to participate in the Vivaldi instance in Mastodon.