Bug 1435296 Bump the default timer precision resolution to 2ms r?baku
MozReview-Commit-ID: G33jNNJVRSU
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1404,17 +1404,17 @@ pref("privacy.firstparty.isolate",
pref("privacy.firstparty.isolate.restrict_opener_access", true);
// Anti-fingerprinting, disabled by default
pref("privacy.resistFingerprinting", false);
// A subset of Resist Fingerprinting protections focused specifically on timers for testing
// This affects the Animation API, the performance APIs, Date.getTime, Event.timestamp,
// File.lastModified, audioContext.currentTime, canvas.captureStream.currentTime
pref("privacy.reduceTimerPrecision", true);
// Dynamically tune the resolution of the timer reduction for both of the two above prefs
-pref("privacy.resistFingerprinting.reduceTimerPrecision.microseconds", 20);
+pref("privacy.resistFingerprinting.reduceTimerPrecision.microseconds", 2000);
// Lower the priority of network loads for resources on the tracking protection list.
// Note that this requires the privacy.trackingprotection.annotate_channels pref to be on in order to have any effect.
#ifdef NIGHTLY_BUILD
pref("privacy.trackingprotection.lower_network_priority", true);
#else
pref("privacy.trackingprotection.lower_network_priority", false);
#endif
--- a/toolkit/components/resistfingerprinting/nsRFPService.cpp
+++ b/toolkit/components/resistfingerprinting/nsRFPService.cpp
@@ -39,17 +39,17 @@ using namespace std;
#ifdef DEBUG
static mozilla::LazyLogModule gResistFingerprintingLog("nsResistFingerprinting");
#endif
#define RESIST_FINGERPRINTING_PREF "privacy.resistFingerprinting"
#define RFP_TIMER_PREF "privacy.reduceTimerPrecision"
#define RFP_TIMER_VALUE_PREF "privacy.resistFingerprinting.reduceTimerPrecision.microseconds"
-#define RFP_TIMER_VALUE_DEFAULT 20
+#define RFP_TIMER_VALUE_DEFAULT 2000
#define RFP_SPOOFED_FRAMES_PER_SEC_PREF "privacy.resistFingerprinting.video_frames_per_sec"
#define RFP_SPOOFED_DROPPED_RATIO_PREF "privacy.resistFingerprinting.video_dropped_ratio"
#define RFP_TARGET_VIDEO_RES_PREF "privacy.resistFingerprinting.target_video_res"
#define RFP_SPOOFED_FRAMES_PER_SEC_DEFAULT 30
#define RFP_SPOOFED_DROPPED_RATIO_DEFAULT 5
#define RFP_TARGET_VIDEO_RES_DEFAULT 480
#define PROFILE_INITIALIZED_TOPIC "profile-initial-state"