How to delete or remove all bookmarks in Mozilla Firefox?
To remove all bookmarks from the browser, follow the steps given below.
Step 1: Click Bookmarks → Show All Bookmarks orPress Ctrl+Shift+B
Step 2: Library window opens, click on the required bookmark option. It will show all the bookmarks for the selected option.
Step 3: Press Ctrl+A to select all the bookmarks. Right click on the selected bookmarks and click Delete.
Selected bookmarks will be deleted as given in the below image.