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Prevent leaking theme accent #1515

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Prevent leaking theme accent #1515

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2 changes: 2 additions & 0 deletions user.js
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Expand Up @@ -920,11 +920,13 @@ user_pref("browser.startup.blankWindow", false);
* [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
user_pref("browser.display.use_system_colors", false); // [DEFAULT false NON-WINDOWS]
/* 4511: enforce non-native widget theme
* additionally disable use of theme accent
* Security: removes/reduces system API calls, e.g. win32k API [1]
* Fingerprinting: provides a uniform look and feel across platforms [2]
* [1] https://bugzilla.mozilla.org/1381938
* [2] https://bugzilla.mozilla.org/1411425 ***/
user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true]
user_pref("widget.non-native-theme.use-theme-accent", false);
/* 4512: enforce links targeting new windows to open in a new tab instead
* 1=most recent window or tab, 2=new window, 3=new tab
* Stops malicious window sizes and some screen resolution leaks.
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