When comparing GNOME Web 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 8th while GNOME Web is ranked 19th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Fits in perfectly with the GNOME desktop
Since it is a GNOME app, you get all the benefits of the GNOME desktop. It's easy to use, Epiphany just works out of the box. It stores your web site passwords in the secure GNOME keyring, and uses your existing desktop settings to launch applications and access the network, so you don't need to configure everything twice.
Pro Excellent alternative to the most popular web browsers
Sometimes my workflow involves using separate browsers. I like mail in app tabs, but some jobs are well suited to a lighter, simpler web browser.
Pro GNOME integrated
Includes features specific to GNOME like turning sites into apps that are managed with GNOME software and the ability to install GNOME extensions.
Pro For Linux and Windows
Available for Linux and Windows 10 with WSL, see here.
Pro Lightweight
Epiphany is pretty lightweight and doesn't require much memory to start up.
Pro Best touchpad navigation
Pinch to zoom, smooth bidirectional scrolling are still far beyond other browsers.
Pro Default in many GNOME versions
Epiphany has been the default browsers for many distributions that use stock GNOME for a long time now (although it's being replaced by the much more popular Firefox lately).
Pro All the benefits of Firefox, but with 100% free software
Pro LibreJS
LibreJS blocks proprietary JavaScript code, ensuring your user freedom.
Pro Protects your freedom, certified free by the FSF
Pro Extra security and privacy features
Pro Made by idealists
It is part of the GNU Project.
Pro No spyware
Pro Https-Everywhere by default
Pro SpyBlock
Blocks privacy trackers.
Cons
Con Crashes often
Epiphany can crash on a heavy load or when closing/opening tabs. While this only happens every few days, it still happens more often than in most other browsers.
Con Not much room for configuration
The choice for extensions is very limited, although there are decent extensions for the most useful activities and features it still cannot compare to the extensive collections that other browsers may have access to.
The number of tweaks that can be done to the browser from the options menu is also very limited since Epiphany follows a philosophy of "less is more". While this can be enjoyable for some it still hinders a lot of functionality and removes the ability to personalize the browser the way you want it to be.
Con Becomes messy on highly graphical pages
Sometimes struggles to handle complex graphical pages such as Facebook. In these circumstances, it becomes 'messy' - text and graphics get mixed up - and will eventually crash. Even so, this is a light and useful browser.
Con Tends to lag on large pages
Open this page in Epiphany and start zooming/scrolling quickly to see what it.
Con Limited UI
Con Too much bloat
The browser comes with 15 addons installed by default, most of which are useless or ruin one's browsing experience.
Con Mainly just an old Firefox
It is mainly a renamend older version of Firefox that comes preinstalled with some extensions.
Con Not up to date
Latest binary is still version 60.7 ESR and was last updated over a year ago
Con Requires too much unnecessary configuration to use
You have to manually delete all the bloated addons from your files (only for them to show up again when the browser is updated) and manually install some addons and themes that the browser labels as "corrupt".
Con Very slow boot time
It takes 10+ seconds for the browser to load up
Con Can't install some Firefox themes/addons
"Installation aborted because the addon appears to be corrupt".
Con Includes LibreJS by default with no way to remove it
Con Very slow boot time
It takes 10+ seconds for the browser to load up
Con Dependent on Mozilla
Since IceCat is based off Firefox, it's dependent on all of Mozilla's decisions.
Con Made by idealists
It is part of the GNU Project.