The launch services database governs this on OS X (and macOS?). How is Quantum interacting with it?
Jonathan S Abrams <http://nutmegcreative.com/about/team/#jonathan-abrams> Chief Technical Engineer Nutmeg Creative 45 West 45th Street | New York, NY 10036 nutmegcreative.com <http://nutmegcreative.com/?utm_source=email%20signature&utm_medium=email&utm_campaign=Email%20Signature> | 212.921.8005 Apple Certified Support Professional v10.5 through v10.10 On Tue, Apr 3, 2018 at 8:00 AM, <enterprise-requ...@mozilla.org> wrote: > Something has happened to the way these operating systems configure feel > associations once FF Quantum is installed. > There is some kind of regular checking mechanism and the default program > for jpg, png, pdf and others – Preview.app is flipped to other programs > installed on the machine. For instance, on my machine, there is a regular > instance of my jpg files defaulting to Firefox at a certain point in time. > This does not happen just between boots, but also seemingly randomly while > Firefox is open. I can have the session up, no hibernation and firefox has > not had much activity other than open tabs. > > At certain points in time, the operating system is instructed to change > the default settings of what applications by various file extensions. > > This has been going on for a while now and has been discussed by some > fairly seasoned technical people in the MacRumors forum. There are people > contributing claiming this has been resolved, but it is not the case. The > problem persists. > > https://forums.macrumors.com/threads/something-keeps- > changing-my-open-with-defaults.2103071/page-3 > https://forums.macrumors.com/threads/default-application- > change-doesnt-change-preview-icon.2031192/ > https://superuser.com/questions/1290394/on-mac-file- > association-for-image-files-keeps-changing-to-grab-when-i-want-pre > https://superuser.com/questions/640730/mac-os-x-file-associations-keep- > changing-though-reverting-it-manually > > > Here is a description of exactly the kinds of behaviors I, and other > people experience: > https://forums.macrumors.com/threads/q-continual-problems- > with-preview-not-staying-default-application.2109017/#post-25873607 > > The conclusion to it all is that Quantum is doing this. > https://discussions.apple.com/thread/8142156 > > > Quantum seems to be the one commonality between all of the users on that > board > > Can someone check the API version being used and the way it is used for > unintended changes that Apple has applied? > This is happening in Lion, mountain Lion, Leopard, Snow Leopard, Yosemite, > Mavericks, El Capitan, Sierra and High Sierra. > Another clue here is when you decide dot change the file association back > from the Option I key combination, you are given a suggested program to > switch to, but it is NEVER offering up Preview.app. You have to select the > option Other… to have the application folder come up and then you can > select Preview. > From here and from the Command-I screen you can select to change it to > default for all files of this type. But this does not hold it. The file > associations again will change on the end user. > > This is simply NOT the way Firefox has EVER behaved in the past and I have > to believe that the way the programming in Quantum is using the API calls > is not completely correct. I am guessing this is kernel level I guess since > it is forcing the OS to change file associations. > Here is a possibly insightful comment in MacRumors about this stuff > https://forums.macrumors.com/threads/how-does-os-x- > associate-file-extensions-with-apps.1590351/ > > _______________________________________________ > Enterprise mailing list > Enterprise@mozilla.org > https://mail.mozilla.org/listinfo/enterprise > > To unsubscribe from this list, please visit https://mail.mozilla.org/ > listinfo/enterprise or send an email to enterprise-requ...@mozilla.org > with a subject of "unsubscribe" >
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