tor-browser

commit 7b43fecbee41829d6a2a5f85f950ba091b6ee6ca
parent aa954ad1f771bbd841b42bb72be4c55830dc3b09
Author: Tom Ritter <tom@mozilla.com>
Date:   Tue,  9 Dec 2025 16:34:57 +0000

Bug 1873716: Create two new canvas fingerprinting metrics for the improved telemetry design r=timhuang

SKIP_BMO_CHECK

Differential Revision: https://phabricator.services.mozilla.com/D272325

Diffstat:
M
toolkit/components/antitracking/metrics.yaml
 | 
87
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 87 insertions(+), 0 deletions(-)
diff --git a/toolkit/components/antitracking/metrics.yaml b/toolkit/components/antitracking/metrics.yaml
@@ -134,6 +134,93 @@ contentblocking:
     expires: 150
     telemetry_mirror: CANVAS_FINGERPRINTING_PER_TAB
 
+  canvas_fingerprinting_per_tab2:
+    type: labeled_counter
+    description: >
+      Whether any canvas fingerprinting attempt was detected, as identified by either a known fingerprinting text or a known behavior (alias)
+    labels:
+      - not_found
+      - found
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1873716
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1847990
+    notification_emails:
+      - seceng-telemetry@mozilla.com
+    expires: 165
+
+  canvas_fingerprinting_type_text_by_source_per_tab2:
+    type: dual_labeled_counter
+    description: Fingerprinting detection hits by known fingerprinting string (key) and source (category).
+    dual_labels:
+      key:
+         description: Known Fingerprinting Strings (exponent of the bit in the KnownText bitmask)
+         labels: ["none", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31"]
+      category:
+        description: >
+          Canvas Extraction Sources.
+          The first set of labels are the powers of two indicating each individual bit that can be set in the bitmask.
+          The second set of labels are the combinations of sources seen or expected.
+          A combination of sources that is not listed will be recorded under the Glean-special label __other__
+        labels: [
+                # 2^0 - 2^8
+                "1", "2", "4", "8", "16", "32", "64", "128", "256",
+                # 2^9 - 2^16
+                "512", "1024", "2048", "4096", "8192", "16384", "32768", "65536",
+                # 2^17 - 2^24
+                "131072", "262144", "524288", "1048576", "2097152", "4194304", "8388608", "16777216",
+                # 2^25 - 2^32
+                "33554432", "67108864", "134217728", "268435456", "536870912", "1073741824", "2147483648", "4294967296",
+                # 2^33 - 2^40
+                "8589934592", "17179869184", "34359738368", "68719476736", "137438953472", "274877906944", "549755813888", "1099511627776",
+                # Known Combinations
+                "80", "144", "208", "8388736"
+                ]
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1873716
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1847990
+    notification_emails:
+      - seceng-telemetry@mozilla.com
+    expires: 165
+
+  canvas_fingerprinting_type_alias_by_source_per_tab2:
+    type: dual_labeled_counter
+    description: >
+      Fingerprinting detection hits by fingerprinter alias (key) and the source(s) used (category).
+      An alias using multiple sources will increment each source individually once, and increment the combination once as well.
+    dual_labels:
+      key:
+        description: A numeral corresponding to the CanvasFingerprinterAlias enum
+        labels: ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50"]
+      category:
+        description: >
+          Canvas Extraction Sources.
+          The first set of labels are the powers of two indicating each individual bit that can be set in the bitmask.
+          The second set of labels are the combinations of sources seen or expected.
+          A combination of sources that is not listed will be recorded under the Glean-special label __other__
+        labels: [
+                # 2^0 - 2^8
+                "1", "2", "4", "8", "16", "32", "64", "128", "256",
+                # 2^9 - 2^16
+                "512", "1024", "2048", "4096", "8192", "16384", "32768", "65536",
+                # 2^17 - 2^24
+                "131072", "262144", "524288", "1048576", "2097152", "4194304", "8388608", "16777216",
+                # 2^25 - 2^32
+                "33554432", "67108864", "134217728", "268435456", "536870912", "1073741824", "2147483648", "4294967296",
+                # 2^33 - 2^40
+                "8589934592", "17179869184", "34359738368", "68719476736", "137438953472", "274877906944", "549755813888", "1099511627776",
+                # Known Combinations
+                "80", "144", "208", "8388736"
+                ]
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=
+    data_reviews:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=
+    notification_emails:
+      - seceng-telemetry@mozilla.com
+    expires: 165
+
   font_fingerprinting_per_tab:
     type: labeled_counter
     description: >