Slimjet Review

Lower memory footprint and CPU usage than Chromium.

Supports adding lists in ublock, adblock, adblockplus, and peerblock/peerguardian text formats.

Has advanced settings to reduce web presence footprint.

Multi-threaded streaming download manager with resume functionality. Interrupted downloads will resume when the program is launched again; number of threads and download location customizable on a per-download basis. Actually downloads Linux ISO's from most popular distributions faster than deluge, utorrent, transmission, etc.

Allows for downloading both video and extracted mp3 audio, a la Youtube2mp3.

Sign in to back up your extensions and settings, just like always.

You can still bring it with you on a flash drive, even when you're not on Linux.

Button is linked to cookies, so doesn't work if signed out (for security/privacy), and also doesn't include any additional tracking like a browser extension would (Facebook, Amazon, etc.)

Has a setting to unload tabs from RAM and CPU usage after a customizable threshold number of tabs are open built in.

A lot more configuration options for everything from built in "share to facebook" buttons to options meant to enable optimization on low powered/low RAM systems