By default, your start.me page will open every link you click in a new tab inside your browser. If you don't want this, you can change this whenever you want.
- Click the User icon in the top right corner of your page.
- Click Settings.
- Toggle Open links in new tab to off. It will turn grey.
Now, every time you click a bookmark, it will open in the same tab.
If you have an issue with opening all links in a widget at once, read this support article.