[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

[tor-commits] [Git][tpo/applications/tor-browser][tor-browser-140.3.0esr-15.0-1] Bug 1984333 - Spoof CPU cores to 4, or 8 if the machine has 8+ cores. r=timhuang

Title: GitLab

morgan pushed to branch tor-browser-140.3.0esr-15.0-1 at The Tor Project / Applications / Tor Browser

Commits:

  • 40d60a9e
    by Fatih Kilic at 2025-09-30T13:22:00+00:00 
    Bug 1984333 - Spoof CPU cores to 4, or 8 if the machine has 8+ cores. r=timhuang

Differential Revision: https://phabricator.services.mozilla.com/D261936

28 changed files:

Changes:

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_etp_iframes.js
    ... ... @@ -10,7 +10,8 @@
    10 10
    11 11 
     "use strict";
    12 12
    13 
    -const SPOOFED_HW_CONCURRENCY = 2;
    13 
    +const SPOOFED_HW_CONCURRENCY =
    14 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    14 15
    15 16 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    16 17
    ... ... @@ -27,6 +28,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    27 28 
       );
    28 29 
     }
    29 30
    31 
    +add_setup(async function () {
    32 
    +  registerCleanupFunction(async function () {
    33 
    +    Services.prefs.clearUserPref(
    34 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    35 
    +    );
    36 
    +  });
    37 
    +});
    38 
    +
    30 39 
     // The following are convenience objects that allow you to quickly see what is
    31 40 
     //   and is not modified from a logical set of values.
    32 41 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes.js
    ... ... @@ -20,7 +20,8 @@
    20 20
    21 21 
     "use strict";
    22 22
    23 
    -const SPOOFED_HW_CONCURRENCY = 2;
    23 
    +const SPOOFED_HW_CONCURRENCY =
    24 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    24 25
    25 26 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    26 27
    ... ... @@ -37,6 +38,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    37 38 
       );
    38 39 
     }
    39 40
    41 
    +add_setup(async function () {
    42 
    +  registerCleanupFunction(async function () {
    43 
    +    Services.prefs.clearUserPref(
    44 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    45 
    +    );
    46 
    +  });
    47 
    +});
    48 
    +
    40 49 
     // The following are convenience objects that allow you to quickly see what is
    41 50 
     //   and is not modified from a logical set of values.
    42 51 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes_aboutblank.js
    ... ... @@ -20,7 +20,8 @@
    20 20
    21 21 
     "use strict";
    22 22
    23 
    -const SPOOFED_HW_CONCURRENCY = 2;
    23 
    +const SPOOFED_HW_CONCURRENCY =
    24 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    24 25
    25 26 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    26 27
    ... ... @@ -37,6 +38,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    37 38 
       );
    38 39 
     }
    39 40
    41 
    +add_setup(async function () {
    42 
    +  registerCleanupFunction(async function () {
    43 
    +    Services.prefs.clearUserPref(
    44 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    45 
    +    );
    46 
    +  });
    47 
    +});
    48 
    +
    40 49 
     // The following are convenience objects that allow you to quickly see what is
    41 50 
     //   and is not modified from a logical set of values.
    42 51 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes_aboutsrcdoc.js
    ... ... @@ -20,7 +20,8 @@
    20 20
    21 21 
     "use strict";
    22 22
    23 
    -const SPOOFED_HW_CONCURRENCY = 2;
    23 
    +const SPOOFED_HW_CONCURRENCY =
    24 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    24 25
    25 26 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    26 27
    ... ... @@ -37,6 +38,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    37 38 
       );
    38 39 
     }
    39 40
    41 
    +add_setup(async function () {
    42 
    +  registerCleanupFunction(async function () {
    43 
    +    Services.prefs.clearUserPref(
    44 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    45 
    +    );
    46 
    +  });
    47 
    +});
    48 
    +
    40 49 
     // The following are convenience objects that allow you to quickly see what is
    41 50 
     //   and is not modified from a logical set of values.
    42 51 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes_blob.js
    ... ... @@ -20,7 +20,8 @@
    20 20
    21 21 
     "use strict";
    22 22
    23 
    -const SPOOFED_HW_CONCURRENCY = 2;
    23 
    +const SPOOFED_HW_CONCURRENCY =
    24 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    24 25
    25 26 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    26 27
    ... ... @@ -37,6 +38,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    37 38 
       );
    38 39 
     }
    39 40
    41 
    +add_setup(async function () {
    42 
    +  registerCleanupFunction(async function () {
    43 
    +    Services.prefs.clearUserPref(
    44 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    45 
    +    );
    46 
    +  });
    47 
    +});
    48 
    +
    40 49 
     // The following are convenience objects that allow you to quickly see what is
    41 50 
     //   and is not modified from a logical set of values.
    42 51 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes_blobcrossorigin.js
    ... ... @@ -23,7 +23,8 @@
    23 23
    24 24 
     "use strict";
    25 25
    26 
    -const SPOOFED_HW_CONCURRENCY = 2;
    26 
    +const SPOOFED_HW_CONCURRENCY =
    27 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    27 28
    28 29 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    29 30
    ... ... @@ -40,6 +41,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    40 41 
       );
    41 42 
     }
    42 43
    44 
    +add_setup(async function () {
    45 
    +  registerCleanupFunction(async function () {
    46 
    +    Services.prefs.clearUserPref(
    47 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    48 
    +    );
    49 
    +  });
    50 
    +});
    51 
    +
    43 52 
     // The following are convenience objects that allow you to quickly see what is
    44 53 
     //   and is not modified from a logical set of values.
    45 54 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes_data.js
    ... ... @@ -20,7 +20,8 @@
    20 20
    21 21 
     "use strict";
    22 22
    23 
    -const SPOOFED_HW_CONCURRENCY = 2;
    23 
    +const SPOOFED_HW_CONCURRENCY =
    24 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    24 25
    25 26 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    26 27
    ... ... @@ -37,6 +38,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    37 38 
       );
    38 39 
     }
    39 40
    41 
    +add_setup(async function () {
    42 
    +  registerCleanupFunction(async function () {
    43 
    +    Services.prefs.clearUserPref(
    44 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    45 
    +    );
    46 
    +  });
    47 
    +});
    48 
    +
    40 49 
     // The following are convenience objects that allow you to quickly see what is
    41 50 
     //   and is not modified from a logical set of values.
    42 51 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_iframes_sandboxediframe.js
    ... ... @@ -20,7 +20,8 @@
    20 20
    21 21 
     "use strict";
    22 22
    23 
    -const SPOOFED_HW_CONCURRENCY = 2;
    23 
    +const SPOOFED_HW_CONCURRENCY =
    24 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    24 25
    25 26 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    26 27
    ... ... @@ -37,6 +38,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    37 38 
       );
    38 39 
     }
    39 40
    41 
    +add_setup(async function () {
    42 
    +  registerCleanupFunction(async function () {
    43 
    +    Services.prefs.clearUserPref(
    44 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    45 
    +    );
    46 
    +  });
    47 
    +});
    48 
    +
    40 49 
     // The following are convenience objects that allow you to quickly see what is
    41 50 
     //   and is not modified from a logical set of values.
    42 51 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups.js
    ... ... @@ -16,7 +16,8 @@
    16 16
    17 17 
     "use strict";
    18 18
    19 
    -const SPOOFED_HW_CONCURRENCY = 2;
    19 
    +const SPOOFED_HW_CONCURRENCY =
    20 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    20 21
    21 22 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    22 23
    ... ... @@ -33,6 +34,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    33 34 
       );
    34 35 
     }
    35 36
    37 
    +add_setup(async function () {
    38 
    +  registerCleanupFunction(async function () {
    39 
    +    Services.prefs.clearUserPref(
    40 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    41 
    +    );
    42 
    +  });
    43 
    +});
    44 
    +
    36 45 
     // The following are convenience objects that allow you to quickly see what is
    37 46 
     //   and is not modified from a logical set of values.
    38 47 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups_aboutblank.js
    ... ... @@ -15,7 +15,8 @@
    15 15
    16 16 
     "use strict";
    17 17
    18 
    -const SPOOFED_HW_CONCURRENCY = 2;
    18 
    +const SPOOFED_HW_CONCURRENCY =
    19 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    19 20
    20 21 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    21 22
    ... ... @@ -32,6 +33,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    32 33 
       );
    33 34 
     }
    34 35
    36 
    +add_setup(async function () {
    37 
    +  registerCleanupFunction(async function () {
    38 
    +    Services.prefs.clearUserPref(
    39 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    40 
    +    );
    41 
    +  });
    42 
    +});
    43 
    +
    35 44 
     // The following are convenience objects that allow you to quickly see what is
    36 45 
     //   and is not modified from a logical set of values.
    37 46 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups_blob.js
    ... ... @@ -15,7 +15,8 @@
    15 15
    16 16 
     "use strict";
    17 17
    18 
    -const SPOOFED_HW_CONCURRENCY = 2;
    18 
    +const SPOOFED_HW_CONCURRENCY =
    19 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    19 20
    20 21 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    21 22
    ... ... @@ -32,6 +33,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    32 33 
       );
    33 34 
     }
    34 35
    36 
    +add_setup(async function () {
    37 
    +  registerCleanupFunction(async function () {
    38 
    +    Services.prefs.clearUserPref(
    39 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    40 
    +    );
    41 
    +  });
    42 
    +});
    43 
    +
    35 44 
     // The following are convenience objects that allow you to quickly see what is
    36 45 
     //   and is not modified from a logical set of values.
    37 46 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups_blob_noopener.js
    ... ... @@ -15,7 +15,8 @@
    15 15
    16 16 
     "use strict";
    17 17
    18 
    -const SPOOFED_HW_CONCURRENCY = 2;
    18 
    +const SPOOFED_HW_CONCURRENCY =
    19 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    19 20
    20 21 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    21 22
    ... ... @@ -32,6 +33,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    32 33 
       );
    33 34 
     }
    34 35
    36 
    +add_setup(async function () {
    37 
    +  registerCleanupFunction(async function () {
    38 
    +    Services.prefs.clearUserPref(
    39 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    40 
    +    );
    41 
    +  });
    42 
    +});
    43 
    +
    35 44 
     // The following are convenience objects that allow you to quickly see what is
    36 45 
     //   and is not modified from a logical set of values.
    37 46 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups_data.js
    ... ... @@ -15,7 +15,8 @@
    15 15
    16 16 
     "use strict";
    17 17
    18 
    -const SPOOFED_HW_CONCURRENCY = 2;
    18 
    +const SPOOFED_HW_CONCURRENCY =
    19 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    19 20
    20 21 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    21 22
    ... ... @@ -32,6 +33,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    32 33 
       );
    33 34 
     }
    34 35
    36 
    +add_setup(async function () {
    37 
    +  registerCleanupFunction(async function () {
    38 
    +    Services.prefs.clearUserPref(
    39 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    40 
    +    );
    41 
    +  });
    42 
    +});
    43 
    +
    35 44 
     // The following are convenience objects that allow you to quickly see what is
    36 45 
     //   and is not modified from a logical set of values.
    37 46 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups_data_noopener.js
    ... ... @@ -15,7 +15,8 @@
    15 15
    16 16 
     "use strict";
    17 17
    18 
    -const SPOOFED_HW_CONCURRENCY = 2;
    18 
    +const SPOOFED_HW_CONCURRENCY =
    19 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    19 20
    20 21 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    21 22
    ... ... @@ -32,6 +33,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    32 33 
       );
    33 34 
     }
    34 35
    36 
    +add_setup(async function () {
    37 
    +  registerCleanupFunction(async function () {
    38 
    +    Services.prefs.clearUserPref(
    39 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    40 
    +    );
    41 
    +  });
    42 
    +});
    43 
    +
    35 44 
     // The following are convenience objects that allow you to quickly see what is
    36 45 
     //   and is not modified from a logical set of values.
    37 46 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_hwconcurrency_popups_noopener.js
    ... ... @@ -15,7 +15,8 @@
    15 15
    16 16 
     "use strict";
    17 17
    18 
    -const SPOOFED_HW_CONCURRENCY = 2;
    18 
    +const SPOOFED_HW_CONCURRENCY =
    19 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    19 20
    20 21 
     const DEFAULT_HARDWARE_CONCURRENCY = navigator.hardwareConcurrency;
    21 22
    ... ... @@ -32,6 +33,14 @@ async function testHWConcurrency(result, expectedResults, extraData) {
    32 33 
       );
    33 34 
     }
    34 35
    36 
    +add_setup(async function () {
    37 
    +  registerCleanupFunction(async function () {
    38 
    +    Services.prefs.clearUserPref(
    39 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    40 
    +    );
    41 
    +  });
    42 
    +});
    43 
    +
    35 44 
     // The following are convenience objects that allow you to quickly see what is
    36 45 
     //   and is not modified from a logical set of values.
    37 46 
     // Be sure to always use `let expectedResults = structuredClone(allNotSpoofed)` to do a

  • browser/components/resistfingerprinting/test/browser/browser_navigator.js
    ... ... @@ -88,7 +88,8 @@ const SPOOFED_UA_OS = {
    88 88 
       android: "Android 10; Mobile",
    89 89 
       other: "X11; Linux x86_64",
    90 90 
     };
    91 
    -const SPOOFED_HW_CONCURRENCY = 2;
    91 
    +const SPOOFED_HW_CONCURRENCY =
    92 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    92 93
    93 94 
     const CONST_APPCODENAME = "Mozilla";
    94 95 
     const CONST_APPNAME = "Netscape";
    ... ... @@ -121,6 +122,12 @@ const SPOOFED_UA_GECKO_TRAIL = {
    121 122
    122 123 
     add_setup(async () => {
    123 124 
       DEFAULT_OSCPU.win = DEFAULT_UA_OS.win = await WindowsOscpuPromise;
    125 
    +
    126 
    +  registerCleanupFunction(async function () {
    127 
    +    Services.prefs.clearUserPref(
    128 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    129 
    +    );
    130 
    +  });
    124 131 
     });
    125 132
    126 133 
     async function testUserAgentHeader() {

  • browser/components/resistfingerprinting/test/browser/browser_navigator_iframes.js
    ... ... @@ -103,7 +103,8 @@ const SPOOFED_UA_OS = {
    103 103 
       android: "Android 10; Mobile",
    104 104 
       other: "X11; Linux x86_64",
    105 105 
     };
    106 
    -const SPOOFED_HW_CONCURRENCY = 2;
    106 
    +const SPOOFED_HW_CONCURRENCY =
    107 
    +  SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    107 108
    108 109 
     const CONST_APPCODENAME = "Mozilla";
    109 110 
     const CONST_APPNAME = "Netscape";
    ... ... @@ -306,6 +307,12 @@ add_setup(async () => {
    306 307 
         framer_crossOrigin_userAgentHTTPHeader: spoofedUserAgent,
    307 308 
         framee_crossOrigin_userAgentHTTPHeader: spoofedUserAgent,
    308 309 
       };
    310 
    +
    311 
    +  registerCleanupFunction(async function () {
    312 
    +    Services.prefs.clearUserPref(
    313 
    +      "privacy.trackingprotection.allow_list.hasUserInteractedWithETPSettings"
    314 
    +    );
    315 
    +  });
    309 316 
     });
    310 317
    311 318 
     const uri = `https://${FRAMER_DOMAIN}/browser/browser/components/resistfingerprinting/test/browser/file_navigator_iframer.html`;

  • browser/components/resistfingerprinting/test/browser/head.js
    ... ... @@ -908,7 +908,7 @@ async function RFPPBMFPP_NormalMode_NoProtectionsTest(
    908 908 
           ["privacy.fingerprintingProtection", true],
    909 909 
           [
    910 910 
             "privacy.fingerprintingProtection.overrides",
    911 
    -        "-NavigatorHWConcurrency,-CanvasRandomization",
    911 
    +        "-NavigatorHWConcurrency,-NavigatorHWConcurrencyTiered,-CanvasRandomization",
    912 912 
           ],
    913 913 
         ].concat(extraPrefs || []),
    914 914 
       });

  • dom/base/Navigator.cpp
    ... ... @@ -690,7 +690,9 @@ uint64_t Navigator::HardwareConcurrency() {
    690 690
    691 691 
       return rts->ClampedHardwareConcurrency(
    692 692 
           nsGlobalWindowInner::Cast(mWindow)->ShouldResistFingerprinting(
    693 
    -          RFPTarget::NavigatorHWConcurrency));
    693 
    +          RFPTarget::NavigatorHWConcurrency),
    694 
    +      nsGlobalWindowInner::Cast(mWindow)->ShouldResistFingerprinting(
    695 
    +          RFPTarget::NavigatorHWConcurrencyTiered));
    694 696 
     }
    695 697
    696 698 
     namespace {

  • dom/base/test/test_navigator_hardwareConcurrency.html
    ... ... @@ -19,8 +19,10 @@
    19 19 
       SimpleTest.waitForExplicitFinish();
    20 20
    21 21 
       resistFingerprinting(true).then(() => {
    22 
    +    const expected = SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    23 
    +
    22 24 
         const y = navigator.hardwareConcurrency;
    23 
    -    ok(y === 2, "hardwareConcurrency should always be 2 when we're resisting fingerprinting.");
    25 
    +    ok(y === expected, "hardwareConcurrency should always be 2 when we're resisting fingerprinting.");
    24 26
    25 27 
         resistFingerprinting(false).then(() => {
    26 28 
           const z = navigator.hardwareConcurrency;

  • dom/workers/RuntimeService.cpp
    ... ... @@ -1980,13 +1980,18 @@ void RuntimeService::MemoryPressureAllWorkers() {
    1980 1980 
       BroadcastAllWorkers([](auto& worker) { worker.MemoryPressure(); });
    1981 1981 
     }
    1982 1982
    1983 
    -uint32_t RuntimeService::ClampedHardwareConcurrency(
    1984 
    -    bool aShouldResistFingerprinting) const {
    1985 
    -  // The Firefox Hardware Report says 70% of Firefox users have exactly 2 cores.
    1983 
    +uint32_t RuntimeService::ClampedHardwareConcurrency(bool aRFPHardcoded,
    1984 
    +                                                    bool aRFPTiered) const {
    1985 
    +  // The Firefox Hardware Report says 34% of Firefox users have exactly 4 cores.
    1986 1986 
       // When the resistFingerprinting pref is set, we want to blend into the crowd
    1987 
    -  // so spoof navigator.hardwareConcurrency = 2 to reduce user uniqueness.
    1988 
    -  if (MOZ_UNLIKELY(aShouldResistFingerprinting)) {
    1989 
    -    return 2;
    1987 
    +  // so spoof navigator.hardwareConcurrency = 4 to reduce user uniqueness. On
    1988 
    +  // OSX, the majority of Macs have 8 cores.
    1989 
    +  if (MOZ_UNLIKELY(aRFPHardcoded)) {
    1990 
    +#ifdef XP_MACOSX
    1991 
    +    return 8;
    1992 
    +#else
    1993 
    +    return 4;
    1994 
    +#endif
    1990 1995 
       }
    1991 1996
    1992 1997 
       // This needs to be atomic, because multiple workers, and even mainthread,
    ... ... @@ -2014,6 +2019,13 @@ uint32_t RuntimeService::ClampedHardwareConcurrency(
    2014 2019 
                                                                numberOfProcessors);
    2015 2020 
       }
    2016 2021
    2022 
    +  if (MOZ_UNLIKELY(aRFPTiered)) {
    2023 
    +    if (unclampedHardwareConcurrency >= 8) {
    2024 
    +      return 8;
    2025 
    +    }
    2026 
    +    return 4;
    2027 
    +  }
    2028 
    +
    2017 2029 
       return std::min(uint32_t(unclampedHardwareConcurrency),
    2018 2030 
                       StaticPrefs::dom_maxHardwareConcurrency());
    2019 2031 
     }

  • dom/workers/RuntimeService.h
    ... ... @@ -164,7 +164,8 @@ class RuntimeService final : public nsIObserver {
    164 164
    165 165 
       void MemoryPressureAllWorkers();
    166 166
    167 
    -  uint32_t ClampedHardwareConcurrency(bool aShouldResistFingerprinting) const;
    167 
    +  uint32_t ClampedHardwareConcurrency(bool aRFPHardcoded,
    168 
    +                                      bool aRFPTiered) const;
    168 169
    169 170 
       void CrashIfHanging();
    170 171

  • dom/workers/WorkerNavigator.cpp
    ... ... @@ -222,10 +222,12 @@ uint64_t WorkerNavigator::HardwareConcurrency() const {
    222 222 
       MOZ_ASSERT(rts);
    223 223
    224 224 
       WorkerPrivate* aWorkerPrivate = GetCurrentThreadWorkerPrivate();
    225 
    -  bool rfp = aWorkerPrivate->ShouldResistFingerprinting(
    226 
    -      RFPTarget::NavigatorHWConcurrency);
    227 225
    228 
    -  return rts->ClampedHardwareConcurrency(rfp);
    226 
    +  return rts->ClampedHardwareConcurrency(
    227 
    +      aWorkerPrivate->ShouldResistFingerprinting(
    228 
    +          RFPTarget::NavigatorHWConcurrency),
    229 
    +      aWorkerPrivate->ShouldResistFingerprinting(
    230 
    +          RFPTarget::NavigatorHWConcurrencyTiered));
    229 231 
     }
    230 232
    231 233 
     StorageManager* WorkerNavigator::Storage() {

  • dom/workers/test/test_navigator_workers_hardwareConcurrency.html
    ... ... @@ -31,8 +31,9 @@
    31 31 
         resistFingerprinting(true).then(() => {
    32 32 
           ok(true, "resistFingerprinting(true) resolved.");
    33 33 
           getWorkerHardwareConcurrency(msg => {
    34 
    +        const expected = SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    34 35 
             const y = msg.data;
    35 
    -        ok(y === 2, "hardwareConcurrency should always be 2 when we're resisting fingerprinting.");
    36 
    +        ok(y === expected, "hardwareConcurrency should always be 2 when we're resisting fingerprinting.");
    36 37
    37 38 
             resistFingerprinting(false).then(() => {
    38 39 
               ok(true, "resistFingerprinting(false) resolved.");

  • toolkit/components/resistfingerprinting/RFPTargets.inc
    ... ... @@ -102,6 +102,7 @@ ITEM_VALUE(ScreenAvailToResolution, 68)
    102 102 
     ITEM_VALUE(UseHardcodedFontSubstitutes, 69)
    103 103 
     ITEM_VALUE(DiskStorageLimit,            70)
    104 104 
     ITEM_VALUE(WebCodecs,                   71)
    105 
    +ITEM_VALUE(NavigatorHWConcurrencyTiered,74)
    105 106
    106 107
    107 108 
     // !!! Don't forget to update kDefaultFingerprintingProtections in nsRFPService.cpp

  • toolkit/components/resistfingerprinting/RFPTargetsDefault.inc
    ... ... @@ -6,7 +6,9 @@
    6 6 
     DESKTOP_DEFAULT(CanvasRandomization)
    7 7 
     DESKTOP_DEFAULT(FontVisibilityLangPack)
    8 8 
     DESKTOP_DEFAULT(JSMathFdlibm)
    9 
    +DESKTOP_DEFAULT(NavigatorHWConcurrencyTiered)
    9 10
    10 11 
     ANDROID_DEFAULT(CanvasRandomization)
    11 12 
     ANDROID_DEFAULT(FontVisibilityLangPack)
    12 13 
     ANDROID_DEFAULT(JSMathFdlibm)
    14 
    +ANDROID_DEFAULT(NavigatorHWConcurrencyTiered)

  • toolkit/components/resistfingerprinting/tests/browser/browser_fpiServiceWorkers_fingerprinting.js
    ... ... @@ -44,7 +44,8 @@ runTestInFirstAndThirdPartyContexts(
    44 44 
         );
    45 45 
       },
    46 46 
       async win => {
    47 
    -    let SPOOFED_HW_CONCURRENCY = 2;
    47 
    +    let SPOOFED_HW_CONCURRENCY =
    48 
    +      SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    48 49
    49 50 
         // Register service worker for the third-party window.
    50 51 
         if (!win.sw) {

  • toolkit/components/resistfingerprinting/tests/browser/browser_serviceWorker_fingerprinting_webcompat.js
    ... ... @@ -7,7 +7,8 @@
    7 7 
     runTestInFirstAndThirdPartyContexts(
    8 8 
       "ServiceWorkers - Ensure the fingerprinting WebCompat overrides the fingerprinting protection in third-party context.",
    9 9 
       async win => {
    10 
    -    let SPOOFED_HW_CONCURRENCY = 2;
    10 
    +    let SPOOFED_HW_CONCURRENCY =
    11 
    +      SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    11 12
    12 13 
         // Register service worker for the first-party window.
    13 14 
         if (!win.sw) {
    ... ... @@ -90,7 +91,8 @@ runTestInFirstAndThirdPartyContexts(
    90 91 
     runTestInFirstAndThirdPartyContexts(
    91 92 
       "ServiceWorkers - Ensure the fingerprinting WebCompat overrides the fingerprinting protection in third-party context with FPI enabled.",
    92 93 
       async win => {
    93 
    -    let SPOOFED_HW_CONCURRENCY = 2;
    94 
    +    let SPOOFED_HW_CONCURRENCY =
    95 
    +      SpecialPowers.Services.appinfo.OS == "Darwin" ? 8 : 4;
    94 96
    95 97 
         // Register service worker for the first-party window.
    96 98 
         if (!win.sw) {

    • —
    View it on GitLab.
    You're receiving this email because of your account on gitlab.torproject.org. Manage all notifications · Help Notification message regarding https://gitlab.torproject.org/tpo/applications/tor-browser/-/commit/40d60a9ecf5c5ad5d23ef8d474ff7cd79acdc6a1 at 1759239013 

    _______________________________________________
tor-commits mailing list -- tor-commits@xxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to tor-commits-leave@xxxxxxxxxxxxxxxxxxxx