I refer to sections 6 and 7 of this document: https://github.com/imperviousai/imp-browser/blob/master/Impervious%20Browser%20Terms%20of%20Service.pdf
Extract (emphasis mine):
- USER GENERATED CONTRIBUTIONS
The Site may invite you to chat, message, conduct audio and/or video calls, share and or collaborative documents, save/or transfer files, contribute to, or participate in blogs, message boards, online forums, and other functionality, and may provide you with the opportunity to create, submit, post, display, transmit, perform, publish, distribute, or broadcast content and materials to us or on the Site, including but not limited to text, writings, video, audio, photographs, graphics, comments, suggestions, or personal information or other material (collectively, "Contributions"). Contributions may be viewable by other users of the Site and through third-party websites. As such, any Contributions you transmit may be treated as non-confidential and non-proprietary. When you create or make available any Contributions, you thereby represent and warrant that:
- The creation, distribution, transmission, public display, or performance, and the accessing, downloading, or copying of your Contributions do not and will not infringe the proprietary rights, including but not limited to the copyright, patent, trademark, trade secret, or moral rights of any third party.
- CONTRIBUTION LICENSE
By posting your Contributions to any part of the Site or making Contributions accessible to the Site by linking your account from the Site to any of your social networking accounts, you automatically grant, and you represent and warrant that you have the right to grant, to us an unrestricted, unlimited, irrevocable, perpetual, non-exclusive, transferable, royalty-free, fully-paid, worldwide right, and license to host, use, copy, reproduce, disclose, sell, resell, publish, broadcast, retitle, archive, store, cache, publicly perform, publicly display, reformat, translate, transmit, excerpt(in whole or in part), and distribute such Contributions (including, without limitation, your image and voice) for any purpose, commercial, advertising, or otherwise, and to prepare derivative works of, or incorporate into other works, such Contributions, and grant and authorize sublicenses of the foregoing. The use and distribution may occur in any media formats and through any media channels.
This license will apply to any form, media, or technology now known or here after developed, and includes our use of your name, company name, andas applicable, and any of the trademarks, service marks, trade names, logos, and personal and commercial images you provide. You waive all moral rights in your Contributions, and you warrant that moral rights have not otherwise been asserted in your Contributions.
We do not assert any ownership over your Contributions. You retain full ownership of all of your Contributions and any intellectual property rights or other proprietary rights associated with your Contributions. We are not liable for any statements or representations in your Contributions provided by you in any area on the Site. You are solely responsible for your Contributions to the Site and you expressly agree to exonerate us from any and all responsibility and to refrain from any legal action against us regarding your Contributions.
We have the right, in our sole and absolute discretion, (1) to edit, redact, or other wise change any Contributions; (2) to re-categorize any Contributions to place them in more appropriate locations on the Site; and (3) to pre-screen or delete anyContributions at any time and for any reason, without notice. We have no obligation to monitor your Contributions.
I'll stop there. The word "Site" refers to the Browser itself (and other things, see first paragraph of section 1).
I'm no lawyer but this document appears to be saying that Impervious can take YOUR data and do what they want with it!!
Now - it could be the case that other browsers have the same terms. I haven't checked. Would appreciate some rational feedback on it...