If you avoid installing extensions, both solutions are essentially the same: both try to minimize the fingerprint of the Web browser and their connections go through Tor in both cases. At least, that is my understanding.
- [Trisquel-users] TBB settings vs Icecat/Abrowser proxy through TOR? jbahn
- [Trisquel-users] Re : TBB settings vs Icecat/Abrowser proxy thr... lcerf