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Fingerprinting (view source)

Revision as of 18:25, 12 May 2026

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This page tracks the deployment of Firefox's Fingerprinting Protection (FPP) feature.
This page tracks the deployment of Firefox's Fingerprinting Protection (FPP) feature.


Other documents that may be relevant depending on the audience:
Other documents that may be relevant depending on the audience:
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== Summary ==
== Summary ==
''As of Firefox 150 Release, last updated 4/15/26, the following protections are enabled:''
''As of Firefox 151 Release, last updated 5/12/26, the following protections are enabled:''


{| class="wikitable"
{| class="wikitable"
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! Protection !! Desktop FPP !! Android FPP !! Desktop Baseline !! Android Baseline
! Protection !! Desktop FPP !! Android FPP !! Desktop Baseline !! Android Baseline
|-
|-
| CanvasRandomization || Yes || Yes || Nightly-only ||
| CanvasRandomization || Yes || Yes || Yes || Nightly-only
|-
|-
| EfficientCanvasRandomization || Yes || Yes || Nightly-only ||
| EfficientCanvasRandomization || Yes || Yes || Yes || Nightly-only
|-
|-
| FontVisibilityLangPack || Yes || Yes || ||
| FontVisibilityLangPack || Yes || Yes || ||
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| JSMathFdlibm || Yes || Yes || ||
| JSMathFdlibm || Yes || Yes || ||
|-
|-
| MaxTouchPointsCollapse || Yes || Yes || Nightly-only ||
| MaxTouchPointsCollapse || Yes || Yes || Yes || Nightly-only
|-
|-
| NavigatorHWConcurrencyTiered || Yes || Yes || ||
| NavigatorHWConcurrencyTiered || Yes || Yes || ||
|-
|-
| ScreenAvailToResolution || Yes || Yes || Nightly-only ||
| ScreenAvailToResolution || Yes || Yes || Yes || Nightly-only
|}
|}


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! Protection Name !! Channel !! Version !! Bugs
! Protection Name !! Channel !! Version !! Bugs
|-
|-
| rowspan="6" | ScreenAvailToResolution
| rowspan="8" | ScreenAvailToResolution
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143; Enabled in Baseline Nightly-only as of 150'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143; Enabled in Baseline Release as of 151'''
|-
| Baseline Release
| 151
| {{bug|2032123}}
|-
| Baseline Beta
| 151
| {{bug|2032123}}
|-
|-
| Baseline Nightly
| Baseline Nightly
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| colspan="3" | Regressions: {{bug|2016747}}
| colspan="3" | Regressions: {{bug|2016747}}
|-
|-
| rowspan="6" | MaxTouchPointsCollapse
| rowspan="8" | MaxTouchPointsCollapse
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143; Enabled in Baseline Nightly-only as of 150'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143; Enabled in Baseline Release as of 151'''
|-
| Baseline Release
| 151
| {{bug|2032123}}
|-
| Baseline Beta
| 151
| {{bug|2032123}}
|-
|-
| Baseline Nightly
| Baseline Nightly
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| colspan="3" | Regressions: {{bug|1991701}} (Linux touch disabled by companion fix {{bug|1957658}}, re-enabled in 146/147); {{bug|2021715}} (Linux Wayland count adjusted, 150)
| colspan="3" | Regressions: {{bug|1991701}} (Linux touch disabled by companion fix {{bug|1957658}}, re-enabled in 146/147); {{bug|2021715}} (Linux Wayland count adjusted, 150)
|-
|-
| rowspan="6" | EfficientCanvasRandomization
| rowspan="8" | EfficientCanvasRandomization
| colspan="3" | '''Enabled in FPP (PBM) Release as of 145; Enabled in Baseline Nightly-only as of 150'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 145; Enabled in Baseline Release as of 151'''
|-
| Baseline Release
| 151
| {{bug|2032123}}
|-
| Baseline Beta
| 151
| {{bug|2032123}}
|-
|-
| Baseline Nightly
| Baseline Nightly
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| colspan="3" | Regressions: {{bug|2025570}} (Google Maps highway labels broken, fixed via RemoteSettings in 150/151)
| colspan="3" | Regressions: {{bug|2025570}} (Google Maps highway labels broken, fixed via RemoteSettings in 150/151)
|-
|-
| rowspan="6" | CanvasRandomization
| rowspan="8" | CanvasRandomization
| colspan="3" | '''Enabled in FPP (PBM) Release as of 120; Enabled in Baseline Nightly-only as of 150'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 120; Enabled in Baseline Release as of 151'''
|-
| Baseline Release
| 151
| {{bug|2032123}}
|-
| Baseline Beta
| 151
| {{bug|2032123}}
|-
|-
| Baseline Nightly
| Baseline Nightly
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! Protection Name !! Channel !! Version !! Bugs
! Protection Name !! Channel !! Version !! Bugs
|-
|-
| rowspan="4" | ScreenAvailToResolution
| rowspan="5" | ScreenAvailToResolution
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143; Enabled in Baseline Nightly-only as of 151'''
|-
| Baseline Nightly
| 151
| {{bug|2032123}}
|-
|-
| FPP (PBM) Release
| FPP (PBM) Release
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| {{bug|1978414}}
| {{bug|1978414}}
|-
|-
| rowspan="4" | MaxTouchPointsCollapse
| rowspan="5" | MaxTouchPointsCollapse
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 143; Enabled in Baseline Nightly-only as of 151'''
|-
| Baseline Nightly
| 151
| {{bug|2032123}}
|-
|-
| FPP (PBM) Release
| FPP (PBM) Release
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| {{bug|1978414}}
| {{bug|1978414}}
|-
|-
| rowspan="4" | EfficientCanvasRandomization
| rowspan="5" | EfficientCanvasRandomization
| colspan="3" | '''Enabled in FPP (PBM) Release as of 145'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 145; Enabled in Baseline Nightly-only as of 151'''
|-
| Baseline Nightly
| 151
| {{bug|2032123}}
|-
|-
| FPP (PBM) Release
| FPP (PBM) Release
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| {{bug|1993304}}
| {{bug|1993304}}
|-
|-
| rowspan="5" | CanvasRandomization
| rowspan="6" | CanvasRandomization
| colspan="3" | '''Enabled in FPP (PBM) Release as of 120'''
| colspan="3" | '''Enabled in FPP (PBM) Release as of 120; Enabled in Baseline Nightly-only as of 151'''
|-
| Baseline Nightly
| 151
| {{bug|2032123}}
|-
|-
| FPP (PBM) Release
| FPP (PBM) Release
Tritter
142

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