GNU IceCat vs Opera : Which is Better?

GNU IceCat

GNU IceCat, formerly known as GNU IceWeasel, Ice Weasel is a free software rebranding of the Mozilla Firefox web browser distributed by the GNU Project. Developed by The GNU Project

License: Open Source

Categories: Web Browsers

Apps available for Mac OS X Windows Linux Android

Opera

Opera is a one of the major web browsers with good extension functionalities. Developed by Opera Software

License: Free

Categories: Security & Privacy Web Browsers

Apps available for Mac OS X Windows Linux Windows Mobile Android

GNU IceCat VS Opera Feature comparision

Feature	GNU IceCat	Opera
Extensible by Plugins/Extensions
Based on Firefox
Tabbed browsing
Built-in Ad-blocker
Web Browsers Based on Firefox
Privacy focused
Customizable
Security & Privacy
Cloud sync
Android Sync
Built-in Adobe Flash Player
Support for TOR
Built-in VPN
Bookmarks
Extensions
Based on Blink engine
Chrome-like
Web Browsers Based on Chromium
Lightweight
Built-in RSS reader
Customizability
Developer Tools
Portable
Web Development
Firefox Extensions
Auto Updates
Block trackers
Bookmark organization
Integrated into iOS
Content blocker
Sync with iCloud
PDF annotation
Casting to TV
MultiTouch
Built-in Download Manager
Based on Chromium
Multiple languages
Resume interrupted downloads
Block ads
Auto-login
Built-In Proxy
Explorer-like
Flexible customizations
Support for gestures
Group tabs
Limit cpu usage
Limit ram usage
Mouse gestures
Night mode/Dark Theme
Opera-like
Pop out video
Privacy Protected
Real-Time Synchronization
Session management
Sidebar
Spatial navigation
Support for Chrome extensions
Sync between devices
Tab preview
Tabbed interface
Text Wrapping
UI customization
WebRTC
Whatsapp integration
Tab Stacking
Support for 64 bit
Privacy enhanced