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2426 dom.IntersectionObserver.enabled added

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default is false anyway. We can readdress this if it ever gets turned on, or used for purposes other than ad networks - I suspect there's nothing really out there using it right now, and the fact 53 is false, I bet there's no big hurry to turn it on due to stability and real world usage.
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Thorin-Oakenpants 2017-04-26 18:02:33 +12:00 committed by GitHub
parent 5cf2de570a
commit 8ca3176ab1
1 changed files with 8 additions and 0 deletions
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user.js
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@ -1024,6 +1024,14 @@ user_pref("javascript.options.wasm", false);
/* 2425: disable ArchiveAPI i.e reading content of archives, such as zip files, directly
* in the browser, through DOM file objects. Default is false. ***/
user_pref("dom.archivereader.enabled", false);
/* 2426: disable Intersection Observer API (FF53+)
* Almost a year to complete, three versions late to stable (as default false),
* number #1 cause of crashes in nightly numerous times, and is (primarily) an
* ad network API for "ad viewability checks" down to a pixel level
* [1] https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API
* [2] https://wicg.github.io/IntersectionObserver/
* [3] https://bugzilla.mozilla.org/show_bug.cgi?id=1243846 ***/
user_pref("dom.IntersectionObserver.enabled", false);
/* 2450a: force Firefox to tell you if a website asks to store data for offline use
* [1] https://support.mozilla.org/en-US/questions/1098540
* [2] https://bugzilla.mozilla.org/show_bug.cgi?id=959985 ***/