I need a browser app for Android with the option to save all open tabs to a bookmark folder without making use of a different device
It seems that all major browsers available on Android don't provide a way to bookmark all open tabs at once.
The suggested method to achieve this result usually involves using a sync option and a desktop app.
While extensions should usually provide for unimplemented browser features, at this time it seems extensions aren't available for most mobile browsers. (The Yandex browser CAN make use of a very restricted selection of extensions, none of which are relevant).
it should be available on the official Play Store
it should be a browser app which allows navigation with multiple tabs
it should provide the option to save at once all currently open tabs as bookmarks
(bookmarks are intended as a list of web pages' titles and addresses that can be selected by the browser as navigation targets)