You can easily find where your bookmarks are stored in Firefox and add to or delete them in your browser.
You can clear your history on Firefox manually, or set it to clear automatically whenever you close Firefox.
If you’re a Firefox user, there’s a handy ... you can call it up at any time via the title bar menu. ・Vivaldi browser adds ‘The Tab Button’ to cut down on tab clutter ・Don’t get hacked! I open dubious ...