Richard Stallman has written a long essay titled " The JavaScript Trap" where he explains that much of the JavaScript served by modern websites is plain malware. JavaScript programs can also be used to provide features like editors, media players and a range of other things. These JavaScript programs are in many cases just used for advertising and tracking "features". The vast majority of big websites, and a large portion of smaller ones, use small programs written in JavaScript to add various functionality. JavaScript is a computer programming language websites can use to execute simple code in web browsers. This is mostly thanks to the LibreJS extension. Most websites are not rendered correctly or usable in a stock out-of-the-box GNU IceCat web browser. The vast majority of web pages can, in theory, be rendered correctly and used as they were intended. The page rendering engine is mature and sound. GNU IceCat is in most ways identical to the very mature Mozilla Firefox web browser. GNU as seen in the SuperTuxKart kart racing game. GNU IceCat 78.2esr showing a broken YouTube website. Fedora eradicated it from their packages for Fedora 31, 32 and 33 in September 2020. Don't use it if your distribution still ships a GNU IceCat version with that extension. That extension, last updated in 2010, was finally removed from the GNU IceCat git repository in June 2020 after it had been included in a broken state for half a decade. It didn't, it would claim to enable Tor and do absolutely nothing beyond claiming Tor was enabled. GNU IceCat used to bundle an additional extension called "Onion Browser Button" which claimed to allow you to "Easily browse the internet using TOR proxy with just one click!". McDonalds Wifi (assist in getting free wifi at some American fat people hangout).Has site-specific fixes for sites that break with LibreJS, concretely: "A collection of work-around scripts for a few different websites that are impossible to use without non-free JavaScript". Provides extra functionality on 3 Italian-language video sharing websites. "Watch videos from video sharing websites with extra options". The homepage () is dead.Ī close-up inspection of tprb_core.js reveals a long list of hard-coded domains, the block-list is built into the extension itself (as opposed to Ublock Origin which updates the filter lists from external sources regularly). "Prevent your browser from connecting to third-party resource without user consent." First thing you should do if you try GNU IceCat is to disable this trash. Makes a very annoying "Hidden HTML detected, would you like to reveal it?" dialog box pop-up on half the sites you visit. It claims to block "non-free" JavaScript but it doesn't actually care (or know) if scripts are free or non-free.Įnsures that sites that are available using both and use Practically useful if you visit the few sites that do not redirect http requests to https and do not set a Strict-Transport-Security header.Įnsures that, and just that site, works when the GNU LibreJS extension is active GNU LibreJS which disables most JavaScript thus breaking most websites (See Features and usability below). Only active on ://Has not been updated since 2018. Web Browser Extensions Bundled With GNU IceCat One of them, Reveal hidden HTML is useless and extremely annoying and another, LibreJS, breaks most websites. GNU IceCat includes several mostly privacy-enhancing web browser extensions that are enabled by default.Telemetry spyware and the Firefox "studies" backdoor are disabled. Most of the differing default settings are privacy-related. The pre-configured defaults are different.The logo and other graphics is blue instead of red and the icon features a cat instead of a fox.GNU IceCat is built using the Firefox "extended support" releases (ESR).The differences between GNU IcatCat and plain stock Mozilla Firefox are: The GNU IceCat Specific Features Who Set It Apart from Mozilla Firefox 2.3 Mozilla-Provided Themes And Extensions.2.2 The other "feature-adding" extensions.1 The GNU IceCat Specific Features Who Set It Apart from Mozilla Firefox.
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