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Firefox version 78 is the last supported Firefox version for Mac users of OS X 10.9 Mavericks, OS X 10.10 Yosemite and OS X 10.11 El Capitan. These users will be moved to the Firefox Extended Support Release (ESR) channel by an application update. This will provide security updates until the next ESR update in July 2021, after which the affected users will no longer receive security updates. Sep 30, 2015 OS X 10.11 Download. OS X 10.11 Download is the twelfth major release to the Macintosh operating system which is namely, the El Capitan download. This is the 10.11 version to the MacOS and it is the last member of the OS X family. Apple has added new features, improvements, and bug fixes to this version of MacOS. Mac OS El Capitan is your twelfth major release of Mac OS X, now that now named as Mac OS X, the latest version is 10.11 for both Apple Inc, background. Mac OS X El Capitan is one of the most well-known running systems, such as Macintosh computers. It is a successor to Mac OS Yosemite and forms on performance. More following in northern.

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As you very well know and is shown in the screenshot above, there can be various utilities put on the right hand side of the menu bar. There are in fact two types of such menu bar items, one known as NSMenuExtra'>NSMenuExtra's and another known as NSStatusItem'>NSStatusItem's. The former are loaded and displayed by SystemUIServer'>SystemUIServer, a process provided by the system. The latter can be displayed by any app written by any developer. One good thing about the former is that you can rearrange them by ⌘-dragging the menu items. I have no idea why ⌘-dragging was not provided for the latter by the system. (On macOS Sierra 10.12, Apple finally implemented and enabled ⌘-dragging for all NSStatusItem's, including this port of MenuMeters. But this happened later than the need to port MenuMeters to El Capitan 10.11.)

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Sep 10, 2020 If the App Store says ‘Open’ then it is detecting a previous download of the install app. Go to the Applications folder locate Install macOS.app. Move it to the Trash, empty the Trash. Restart, click on the link again, the App Store should say ‘Get' or 'Download'.

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Anyway, due to this better behavior of NSMenuExtra's, people often wanted to write their own. In fact until and including OS X 10.1, Apple allowed it. But since 10.2, Apple had a code that blocked SystemUIServer to load non-system-provided NSMenuExtra's. But until Yosemite, there was a known way to work around it, available as an open-source code as MenuCracker. MenuMeters used this to inject their own NSMenuExtra's to SystemUIServer; in fact MenuMeters' author is one of the main authors of MenuCracker.

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Essentially, until Yosemite, SystemUIServer had a fixed list of allowed NSMenuExtras. MenuCracker was an NSMenuExtra that pretended to be one of those allowed ones, which, once loaded inside SystemUIServer, removed these checks, so that more NSMenuExtras can be loaded without any problem. In El Capitan, Apple added a more stringent check of the allowed NSMenuExtra's, and MenuCracker no longer works.

Os X Version 10.11 Download

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So, how did I port MenuMeters to El Capitan, then? Well, I just gave up having ⌘-dragging. Then all I had to do was to, basically speaking, replace the occurrences of 'NSMenuExtra' by 'NSStatusItem', since the two APIs are almost the same.