When comparing Chromium vs GNU IceCat, the Slant community recommends GNU IceCat for most people. In the question“What are the best desktop web browsers?” GNU IceCat is ranked 7th while Chromium is ranked 11th.
Ranked in these QuestionsQuestion Ranking
Pro Completely Open Source
Both Chromium and and its rendering engine Blink are licensed under the BSD-license which includes no copyleft unlike the GNU or Mozilla Licenses.
Pro Access to Chrome's extensions
Chromium can access the Chrome Web Store and all the extensions hosted there can be installed and used on Chromium.
Pro Supports all of Google Chrome features
As Chrome is based on Chromium they overlap in supported features. Chromium syncs between devices, automatically updates, has great built-in developer tools, installs extensions without a restart, includes a combined text bar for entering URLs and searching and has excellent HTML5 compatibility just like Chrome.
Chrome and Chromium are available on almost every device nowadays
Every tab and plugin runs in its own subprocess so they will never affect the whole browser ,however that consumes more memory than other browsers
Pro Backed by Google
Chromium was first released as a large portion of Chrome's source code as an open source project by Google in september 2008. The idea was to encourage developers to review the underlying code and to contribute in making Chrome cross platform and port it to Mac and Linux as well.
Nowadays Chromium is a large project with a huge community that's standing behind it but still Google continues to take an extremely active role in Chromium development. This ensures the longevity and constant development and improvement of the browser.
Pro Latest Blink
This is the browser Blink is made for and developed alongside.
Pro Extra security and privacy features
Pro All the benefits of Firefox, but with 100% free software
Pro Protects your freedom, certified free by the FSF
Blocks privacy trackers
blocks unwanted JS code.
Pro Https-Everywhere by default
Pro Made by idealists
It is part of the GNU Project.
Con Lacks privacy options
Con High RAM usage
Due the sandboxing, Chromium also eats a lot of RAM , which can be a problem for machines with smaller RAM.
Con Lacks support for certain common media formats
As Chromium avoids bundling any proprietary software, media that requires proprietary codecs or formats such as AAC, H.264, MP3 and Flash will not play by default on Chromium.
Con No official builds
There are no official builds available so you have to rely on a third party distributor
Con Not possible to disable WebRTC
Con Can be dangerous
There are plenty of Chromium distributors and every one of them can disable specific features (like sandboxing) for their build, so you will never know what you get.
Con Dependent on Mozilla
Since IceCat is based off Firefox, it's dependent on all of Mozilla's decisions.
Con Can't install some Firefox themes/addons
"Installation aborted because the addon appears to be corrupt"
Con Too much bloat
The browser comes with 15 addons installed by default, most of them which are useless or ruin one's browsing experience