Hi, sorry no there is not for that. You did get back from the Trash which is great. Another would be to check history if had recently viewed the page. Also always :

• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer
• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Please let us know if this solved your issue or if need further assistance.

You can use Ctrl+Z (Organize -> Undo) in the Bookmarks Manager (Library) to undo all changes made in the current session like you posted above. Because if this there is no confirmation necessary. This is similar to closing a tab and use Ctrl+Shift+T to reopen this tab.

Note that if you only notice after closing and restarting Firefox that you will have to restore a JSON backup from the bookmarkbackups folder.

• Bookmarks -> Show All Bookmarks -> Import & Backup -> Restore