Delete bookmark in safari bookmark bar - Apple MacBook Pro Notebook

In this case, an iPhone Data Cleaner can help you delete the bookmark.
How to Delete Bookmarks on iPhone

According to Apple -- Drag the bookmark above the Safari bookmarks bar and release the mouse button or you can go to bookmarks and delete the bookmark .

Open Safari by clicking on the Safari icon in your Application Dock. If you do not have Safari in your dock, click the Finder icon in your dock to open the Finder window. Click on the Applications icon in the far left column of you Finder window, and then double-click the Safari icon.

2 Identify the bookmarks you would like to keep and the ones you would like to delete. Safari has a bookmarks bar and a bookmarks pull-down tab. Delete bookmarks that are saved on your bookmark bar by hovering the arrow over the bookmark you want to delete. Press and hold the "Control" key and click your mouse pad. A pull-down menu will appear; highlight the "delete" option and click your mouse pad. The tab will now be deleted from your bookmark bar.

3 Delete bookmarks in the pull-down menu by clicking the Bookmark tab at the top of your screen. Select the first option called, "Show all bookmarks." Select the "Bookmarks Menu" option in the left hand column of the window that pops up. Hover the arrow over the bookmark you want to delete. Press and hold the "Control" key and click your mouse pad. A pull-down menu will appear; highlight the "delete" option and click your mouse pad. The tab will now be deleted from your bookmark bar.

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If using the touch pad, two finger click the bookmark, this will bring up another menu where you can click Delete.

You bookmarks are on the left sidebar.

Your Favorites Bar is the second line down on Safari. You click on "View" then you can click hide or show the favorites bar.

You can edit the Favorites Bar by two finger clicking the touch pad or right clicking the (Non Apple) mouse.
You can also drag the link to the trash can to remove it.

To put another link in the favorites bar, click on the link in the tool bar and drag it to the favorites bar.

In Safari, click the book icon under the back and forwards buttons, which are under the red close button. Once opened, click bookmarks bar, click the bookmarks(s) you wish to delete and either right-click or hit delete on your keyboard. Voila! :) Hope it works.

I assume you are speaking of browser bookmarks.
In Safari, you can use the "Reset Safari" option under the Safari menu, and choose bookmarks.
In Firefox, you can go to the bookmarks list, select all, and delete all.
If you are using another browser, the operation should be similar to Firefox.

Go to Bookmarks in menu bar. Select Show All Bookmarks Highlight the bookmark you want to delete Press the Delete key on the keyboard

In bookmarks menu choose "show all bookmarks". Go to that folder and click on the one you want to remove. Backspace, it is gone. Drag it to the trash, it is gone. If it is in the Bookmarks bar under the toolbar, just move the bookmark into space and watch the puff of smoke. Goodbye bookmark.