Chrome and Firefox allow you to restore deleted bookmarks, but Chrome doesn’t make it easy. The bookmarks backup File in Chrome is hidden. Restoring the backup File manually is the only option, and the File is often overwritten.
Mozilla Firefox users have it easier because the bookmark manager features an undo feature. In addition, Firefox backs up bookmarks automatically. Fortunately, Firefox keeps backups for several days, so restoring bookmarks is easy without digging through hidden folders.

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Google Chrome
It’s much easier for Firefox users. In either the Bookmarks sidebar or Library window, just hit Ctrl+Z when you just deleted a bookmark. There is an Undo command on the “Organize” menu in the Library window.
You could restore the bookmarks if you deleted them a few days ago using the Restore submenu. Your bookmarks are automatically backed up by Firefox each day and stored for a week.
The only thing you need to know is that restoring the backup will completely replace your existing bookmarks with the bookmarks from the backup, meaning any bookmarks created since the backup was created will be lost.
The Export Bookmarks to HTML option can also avoid losing any important, new bookmarks before restoring the backup. The HTML file can be imported or viewed in Firefox after restoring the backup.
If your bookmarks are important to you, you should regularly back them up using the bookmark manager in your browser. The import feature of any web browser can be used to restore your bookmarks from a backup if you lose your bookmarks or if your hard drive fails.
It may need to be pressed while in the bookmarks list. Use Command+Z on a Mac.
There is no Undo option in Chrome’s bookmark manager. You could accidentally delete an entire folder full of bookmarks without any obvious way to retrieve them if your finger slips. Backups that have been exported can be imported-but they may already be outdated.
The first step is to export the backups. Close all Chrome windows, but don’t reopen Chrome if you accidentally deleted a bookmark. Leave Chrome closed if you closed it already. Each time Chrome launches, it overwrites the bookmarks file.
Enter the following address into Windows Explorer’s address bar-replacing “NAME” with the name of the account you created:
C:\Users\NAME\AppData\Local\Google\Chrome\User Data\Default
Two bookmark files are included in the folder – Bookmarks and Bookmarks.bak. This is the most recent backup of your bookmarks, taken the last time you opened your browser.
Please close all Chrome browser windows before restoring the backup:
You may need to rename your existing bookmarks File to something like Bookmarks.old. The bookmarks file is only preserved if the original needs to be restored.
Remove the .bak extension from the Bookmarks.bak file. The backup File will be loaded whenever Chrome is opened.
If you could restore your missing bookmark, open Chrome and check it out.
If these steps fail to restore your bookmark, it means your backup File was saved more recently than your bookmark was lost. Unfortunately, your only option is to pull an even older backup file from your PC if you have one.
The process described above will also remove any bookmarks you’ve created since your last launch of Chrome.
Also, Read | How to Import Bookmarks Into Google Chrome
Mozilla Firefox
It’s much easier for Firefox users. In either the Bookmarks sidebar or Library window, just hit Ctrl+Z when you just deleted a bookmark. There is an Undo command on the “Organize” menu in the Library window.
You could restore the bookmarks if you deleted them a few days ago using the Restore submenu. Your bookmarks are automatically backed up by Firefox each day and stored for a week.
The only thing you need to know is that restoring the backup will completely replace your existing bookmarks with the bookmarks from the backup, meaning any bookmarks created since the backup was created will be lost.
The Export Bookmarks to HTML option can also avoid losing any important, new bookmarks before restoring the backup. The HTML file can be imported or viewed in Firefox after restoring the backup.
If your bookmarks are important to you, you should regularly back them up using the bookmark manager in your browser. The import feature of any web browser can be used to restore your bookmarks from a backup if you lose your bookmarks or if your hard drive fails.