Firefox 148.01 on Android 10, when attempting to save a page in a bookmark subfolder I click the 3 dots, save bookmark comes up, I click on it, then I click on bookmarks edit which appears a few seconds on the bottom of the page and than it says bookmarks and underneath new folder, my subfolders don't show up anymore. So I can only save under bookmarks or underneath start a new folder. I don't see a way of moving the page from bookmarks to the subfolders either.