Firefox's Session Restore is a **bleep**ing disgrace.
A browser has one elementary responsibility: do not silently destroy the user's browsing state. Firefox has now wiped all of my open tabs three separate times.
The latest incident happened after a normal shutdown. There was no Firefox crash, no update at the time, no disk failure, and "Open previous windows and tabs" was enabled. The session files were structurally valid, but Firefox had recorded tabs:[], preserved only older manually closed tabs, opened about:home, disabled "Restore Previous Session", and overwritten the recoverable session.
This is not a minor inconvenience. It is data loss.
This failure wipes out every supposed advantage of using Firefox. Privacy, customization, and independence mean absolutely nothing if I cannot trust the browser to preserve fewer than ten tabs across a normal restart. Chrome can at least detect a failed session and offer to restore it. Firefox silently treats the empty session as correct and destroys the evidence needed for recovery.
Session Restore needs validated rotating backups. Firefox must never replace a non-empty session with tabs:[] without retaining a recoverable copy and clearly warning the user.
Until this is fixed, Firefox is not reliable enough for daily use, and I cannot recommend it to anyone.
