I don't blame them for being confused, because this whole blog post is about the confusion of Safari extensions. The content blocker extension simply gives Safari a list of blocking rules, and Safari itself does all of the work, so the content blocker extension receives no information from Safari about the URLs blocked or loaded.Ī lot of people think that StopTheMadness is a content blocker, but it's not. Hide HTML elements on the web page according to a CSS selector.Block cookies from loading with the URL.Each rule associates a URL pattern with an action: Instead of using JavaScript, a powerful programming language that allows developers to write arbitrary code ( Turing-complete, as they say), a Safari content blocker uses a limited list of blocking rules. Safari's settings for websites allow content blockers to be enabled or disabled en masse (if you have more than one). Notice how every type of Safari extension is combined in the Safari Extensions settings on Mac, whereas content blockers and web extensions are separated in the settings on iOS. This is why a content blocker "does not have permission to read or transmit content from any webpages." Safari content blockers are the only type of Safari extension with no support for JavaScript. Safariextz is now an obsolete extension format. I don't know why, but Apple decided to deprecate Safariextz in Safari version 12, and all support for Safariextz was removed in Safari version 13, released 2019. Indeed, Safari extensions were very similar to, though not exactly the same as, Chrome and Firefox extensions.Įxtension developers could distribute Safariextz from their own web sites, as I did, and Apple hosted the Safari Extensions Gallery (now defunct), a curated list of free extensions that was accessible from inside Safari. A Safariextz consisted of web-compatible files such as JavaScript, HTML, style sheets, and images, allowing any web developer to relatively easily create a Safari extension. Instead, extension developers used the Safari Extension Builder, which was included in Safari itself. An extension archive contained no compiled executable files, and you could develop a Safariextz without using Apple's native development IDE, Xcode. Safariextz were the only type of Safari extension that didn't require a native app wrapper. Back in the day, when there was only one type of Safari extension, we just called them Safari extensions, of course. In retrospect, for lack of a better name, we now call them Safariextz. The original Safari extensions introduced in 2010 were distributed in an archive file format with the. Safariextz isn't really a name, it's a file extension. I hope that this blog post provides some level of clarity on the subject of Safari extensions. (I've also written Chrome and Firefox extensions, but let's not even go there.)ĭevelopers like me know the technical differences between the four types of extension, but many Safari users are confused by the multitude. StopTheMadness in the iOS App Store, StopTheScript, Homecoming for Mastodon, Tweaks for Twitter.I don't know how many people on Earth have written and released every type of Safari extension, but do I know there's at least one such person: me! Safari web extension: 2020 Mac, 2021 iOS.Safari content blocker: 2015 Mac and iOS.Apple's Safari web browser first added support for extensions in version 5, and since then-we're now at Safari version 16-there have been four different extension formats! What's a Safari extension? The answer turns out to be complicated. The four types of Safari extension Underpass App Company News The four types of Safari extension April 24, 2023
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