| rycee.firefox-addons.annotations-restored | Brings annotation support back to YouTube™! |
| charmbracelet.melt | Backup and restore Ed25519 SSH keys with seed words |
| rycee.firefox-addons.session-sync | Save sessions as bookmarks and access them across devices.
Advanced Session Manager: edit, save, change, restore.
It can also be your best Bookmark Manager |
| rycee.firefox-addons.tab-session-manager | Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync. |
| rycee.firefox-addons.cookie-quick-manager | An addon to manage cookies (view, search, create, edit, remove, backup, restore, protect from deletion and much more). Firefox 57+ is supported. |
| rycee.firefox-addons.undoclosetabbutton | Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu. |