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2402: potential clipboard leak fixed in FF89+

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Thanks @gwarser for testing, creating the bugzilla, being patient, and confirming the fix
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Thorin-Oakenpants 2021-04-04 12:01:49 +00:00 committed by GitHub
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@ -1023,8 +1023,8 @@ user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!
/* 2402: disable website access to clipboard events/content [SETUP-HARDEN]
* [NOTE] This will break some sites' functionality e.g. Outlook, Twitter, Facebook, Wordpress
* This applies to onCut/onCopy/onPaste events - i.e. it requires interaction with the website
* [WARNING] If both 'middlemouse.paste' and 'general.autoScroll' are true (at least one
* is default false) then enabling this pref can leak clipboard content [1]
* [WARNING] In FF88 or lower, with clipboardevents enabled, if both 'middlemouse.paste' and
* 'general.autoScroll' are true (at least one is default false) then the clipboard can leak [1]
* [1] https://bugzilla.mozilla.org/1528289 ***/
// user_pref("dom.event.clipboardevents.enabled", false);
/* 2404: disable clipboard commands (cut/copy) from "non-privileged" content [FF41+]