When comparing Tree Style Tab vs Imagus, the Slant community recommends Tree Style Tab for most people. In the question“What are the best Firefox add-ons?” Tree Style Tab is ranked 5th while Imagus is ranked 13th. The most important reason people chose Tree Style Tab is:
Tree Style allows you to have at least 10 tabs open.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Organizes multiple tabs
Tree Style allows you to have at least 10 tabs open.
Pro Visibility
It lets you see everything you want to see and auto-hides those you don't.
Pro Fairly stable
It does not seem slow, you'd never have problems that will make you disable the program.
Pro High customization
Pro Theme support
Pro High customization
Plenty of settings which can be customized, and reviewing them is currently the best way to learn about what the extension is capable of.
Pro Free
There is no limitation.
Pro Cross platform
Available for chrome and firefox.
Cons
Con No per-group customization
No way to colorize or otherwise highlight a group of tabs. Can reorder, but not the same.