Bookmarks in a web browser are saved so that it can be referred. It is also known as favorite web pages. To Bookmark a web page, visit the page and press Ctrl+D. This will give you an option to save the web page.
In this way, all the bookmarks get saved like this on pressing Ctrl+D. The star sign as you can see below also allows you to add a bookmark −
Bookmark on Firefox

Bookmark on Chrome
Let’s learn how to delete a bookmark in a web browser. To delete a bookmark, which you bookmarked before in Firefox or Chrome, you need to open the website and click on the start button.
This start button is the Bookmark button and on clicking shows you options to remove or edit the bookmark.