UniMark by Vieolo

UniMark is a productivity tool which stores and gives access to your browser bookmarks across multiple platforms.
All you need to do is to download the extension and app, log in, and save the links to the webpages that are important to you. You can then access, use, and modify them from anywhere.
Unimark is currently available in Chrome and Firefox browsers as extensions and in Android as an app.
The saved links are categorised in different folders to help you keep your important bookmarks organised.