Alternatives to Tree Style Tab
Shows Firefox tabs as a vertical tree with parent and child relationships. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Tree Style Tab
Shows Firefox tabs as a vertical tree with parent and child relationships.
Replacements
Listings that take over the same core job as Tree Style Tab.
Sidebery
Vertical tab tree and bookmarks sidebar with container support.
Sidebery also shows Firefox tabs as a vertical tree, adds container-bound panels, a bookmarks sidebar and snapshots, is MIT licensed, and has many settings to set up.
Similar software
Related functionality, not a direct replacement.
Tab Session Manager
Saves and restores window and tab sessions, with optional cloud sync.
Tab Stash
Stashes batches of tabs away as ordinary bookmarks.
Firefox Multi-Account Containers
Separates browsing into colour-coded container tabs with isolated cookies.
Auto Tab Discard
Suspends inactive tabs to free memory, keeping them in the tab strip.
Temporary Containers
Opens tabs in disposable Firefox containers that are deleted afterwards.
